22121301402004 has 24 divisors (see below), whose sum is σ = 44244100103168. Its totient is φ = 9480236893920.

The previous prime is 22121301401977. The next prime is 22121301402043. The reversal of 22121301402004 is 40020410312122.

It is a congruent number.

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, 12525684 + ... + 14182219.

Almost surely, 2^{22121301402004} is an apocalyptic number.

It is an amenable number.

22121301402004 is an abundant number, since it is smaller than the sum of its proper divisors (22122798701164).

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

22121301402004 is a wasteful number, since it uses less digits than its factorization.

22121301402004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26737495 (or 26737493 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 22121301402004 its reverse (40020410312122), we get a palindrome (62141711714126).

The spelling of 22121301402004 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred one million, four hundred two thousand, four".