22121002121118 has 16 divisors (see below), whose sum is σ = 44242414465536. Its totient is φ = 7373599003160.

The previous prime is 22121002121111. The next prime is 22121002121131. The reversal of 22121002121118 is 81112120012122.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121002121111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16389396 + ... + 17687687.

It is an arithmetic number, because the mean of its divisors is an integer number (2765150904096).

Almost surely, 2^{22121002121118} is an apocalyptic number.

22121002121118 is an abundant number, since it is smaller than the sum of its proper divisors (22121412344418).

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

22121002121118 is a wasteful number, since it uses less digits than its factorization.

22121002121118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34185279.

The product of its (nonzero) digits is 256, while the sum is 24.

The spelling of 22121002121118 in words is "twenty-two trillion, one hundred twenty-one billion, two million, one hundred twenty-one thousand, one hundred eighteen".