1223212010 has 32 divisors (see below), whose sum is σ = 2229513552. Its totient is φ = 483148800.

The previous prime is 1223212009. The next prime is 1223212019. The reversal of 1223212010 is 102123221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 762809161 + 460402849 = 27619^2 + 21457^2 .

It is not an unprimeable number, because it can be changed into a prime (1223212019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435932 + ... + 438728.

Almost surely, 2^1223212010 is an apocalyptic number.

1223212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223212010 is a deficient number, since it is larger than the sum of its proper divisors (1006301542).

1223212010 is a wasteful number, since it uses less digits than its factorization.

1223212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1223212010 is about 34974.4479584739. The cubic root of 1223212010 is about 1069.4666483309.

Adding to 1223212010 its reverse (102123221), we get a palindrome (1325335231).

It can be divided in two parts, 12232 and 12010, that added together give a palindrome (24242).

The spelling of 1223212010 in words is "one billion, two hundred twenty-three million, two hundred twelve thousand, ten".