22121011110018 has 32 divisors (see below), whose sum is σ = 44562391188480. Its totient is φ = 7320335576400.

The previous prime is 22121011109987. The next prime is 22121011110041. The reversal of 22121011110018 is 81001111012122.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22121011109976 and 22121011110003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6029358 + ... + 8977481.

It is an arithmetic number, because the mean of its divisors is an integer number (1392574724640).

Almost surely, 2^{22121011110018} is an apocalyptic number.

22121011110018 is an abundant number, since it is smaller than the sum of its proper divisors (22441380078462).

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

22121011110018 is a wasteful number, since it uses less digits than its factorization.

22121011110018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15008622.

The product of its (nonzero) digits is 64, while the sum is 21.

The spelling of 22121011110018 in words is "twenty-two trillion, one hundred twenty-one billion, eleven million, one hundred ten thousand, eighteen".