1222021002 has 16 divisors (see below), whose sum is σ = 2461626720. Its totient is φ = 404409552.

The previous prime is 1222020953. The next prime is 1222021037. The reversal of 1222021002 is 2001202221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731793 + ... + 733460.

It is an arithmetic number, because the mean of its divisors is an integer number (153851670).

Almost surely, 2^1222021002 is an apocalyptic number.

1222021002 is an abundant number, since it is smaller than the sum of its proper divisors (1239605718).

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

1222021002 is a wasteful number, since it uses less digits than its factorization.

1222021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465397.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1222021002 is about 34957.4169812359. The cubic root of 1222021002 is about 1069.1194321628.

Adding to 1222021002 its reverse (2001202221), we get a palindrome (3223223223).

The spelling of 1222021002 in words is "one billion, two hundred twenty-two million, twenty-one thousand, two".