1222010020 has 72 divisors (see below), whose sum is σ = 3256606080. Its totient is φ = 380882880.

The previous prime is 1222009979. The next prime is 1222010057. The reversal of 1222010020 is 200102221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1222009979 and 1222010006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45900 + ... + 67459.

It is an arithmetic number, because the mean of its divisors is an integer number (45230640).

Almost surely, 2^1222010020 is an apocalyptic number.

1222010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222010020 is an abundant number, since it is smaller than the sum of its proper divisors (2034596060).

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

1222010020 is a wasteful number, since it uses less digits than its factorization.

1222010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113393 (or 113384 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1222010020 is about 34957.2599040600. The cubic root of 1222010020 is about 1069.1162295161.

Adding to 1222010020 its reverse (200102221), we get a palindrome (1422112241).

The spelling of 1222010020 in words is "one billion, two hundred twenty-two million, ten thousand, twenty".