1221424311002 has 16 divisors (see below), whose sum is σ = 2099394980160. Its totient is φ = 522086378688.

The previous prime is 1221424310983. The next prime is 1221424311017. The reversal of 1221424311002 is 2001134241221.

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, 115093103 + ... + 115103714.

It is an arithmetic number, because the mean of its divisors is an integer number (131212186260).

Almost surely, 2^{1221424311002} is an apocalyptic number.

1221424311002 is a deficient number, since it is larger than the sum of its proper divisors (877970669158).

1221424311002 is a wasteful number, since it uses less digits than its factorization.

1221424311002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230197205.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1221424311002 its reverse (2001134241221), we get a palindrome (3222558552223).

The spelling of 1221424311002 in words is "one trillion, two hundred twenty-one billion, four hundred twenty-four million, three hundred eleven thousand, two".