22021021121122 has 16 divisors (see below), whose sum is σ = 34784454909600. Its totient is φ = 10426683536640.

The previous prime is 22021021121119. The next prime is 22021021121131. The reversal of 22021021121122 is 22112112012022.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 22021021121122.

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, 120086847 + ... + 120270082.

It is an arithmetic number, because the mean of its divisors is an integer number (2174028431850).

Almost surely, 2^{22021021121122} is an apocalyptic number.

22021021121122 is a deficient number, since it is larger than the sum of its proper divisors (12763433788478).

22021021121122 is a wasteful number, since it uses less digits than its factorization.

22021021121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240359361.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22021021121122 its reverse (22112112012022), we get a palindrome (44133133133144).

The spelling of 22021021121122 in words is "twenty-two trillion, twenty-one billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".