1222404001012 has 96 divisors (see below), whose sum is σ = 2338568838144. Its totient is φ = 557551737600.

The previous prime is 1222404001009. The next prime is 1222404001043. The reversal of 1222404001012 is 2101004042221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33088383 + ... + 33125305.

It is an arithmetic number, because the mean of its divisors is an integer number (24360092064).

Almost surely, 2^{1222404001012} is an apocalyptic number.

It is an amenable number.

1222404001012 is a deficient number, since it is larger than the sum of its proper divisors (1116164837132).

1222404001012 is a wasteful number, since it uses less digits than its factorization.

1222404001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37189 (or 37187 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1222404001012 its reverse (2101004042221), we get a palindrome (3323408043233).

The spelling of 1222404001012 in words is "one trillion, two hundred twenty-two billion, four hundred four million, one thousand, twelve".