1212020010 has 40 divisors (see below), whose sum is σ = 3258989316. Its totient is φ = 323205120.

The previous prime is 1212020009. The next prime is 1212020011. The reversal of 1212020010 is 100202121.

1212020010 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1212020009) and next prime (1212020011).

It can be written as a sum of positive squares in 2 ways, for example, as 1138455081 + 73564929 = 33741^2 + 8577^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1212019974 and 1212020001.

It is not an unprimeable number, because it can be changed into a prime (1212020011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 747351 + ... + 748970.

Almost surely, 2^1212020010 is an apocalyptic number.

1212020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212020010 is an abundant number, since it is smaller than the sum of its proper divisors (2046969306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212020010 is a wasteful number, since it uses less digits than its factorization.

1212020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496340 (or 1496331 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1212020010 is about 34814.0777559883. The cubic root of 1212020010 is about 1066.1948897840.

Adding to 1212020010 its reverse (100202121), we get a palindrome (1312222131).

The spelling of 1212020010 in words is "one billion, two hundred twelve million, twenty thousand, ten".