321121042400022 has 128 divisors (see below), whose sum is σ = 693583375726080. Its totient is φ = 98783400960000.

The previous prime is 321121042399999. The next prime is 321121042400023. The reversal of 321121042400022 is 220004240121123.

It is a junction number, because it is equal to n+sod(n) for n = 321121042399965 and 321121042400001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321121042400023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8549302122 + ... + 8549339682.

It is an arithmetic number, because the mean of its divisors is an integer number (5418620122860).

Almost surely, 2^{321121042400022} is an apocalyptic number.

321121042400022 is an abundant number, since it is smaller than the sum of its proper divisors (372462333326058).

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

321121042400022 is a wasteful number, since it uses less digits than its factorization.

321121042400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40350.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 321121042400022 its reverse (220004240121123), we get a palindrome (541125282521145).

The spelling of 321121042400022 in words is "three hundred twenty-one trillion, one hundred twenty-one billion, forty-two million, four hundred thousand, twenty-two".