21122102000222 has 8 divisors (see below), whose sum is σ = 31691067864456. Its totient is φ = 10558412712072.

The previous prime is 21122102000177. The next prime is 21122102000227. The reversal of 21122102000222 is 22200020122112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21122102000222² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21122102000222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122102000227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319134013 + ... + 1319150024.

It is an arithmetic number, because the mean of its divisors is an integer number (3961383483057).

Almost surely, 2^{21122102000222} is an apocalyptic number.

21122102000222 is a deficient number, since it is larger than the sum of its proper divisors (10568965864234).

21122102000222 is a wasteful number, since it uses less digits than its factorization.

21122102000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638288042.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21122102000222 its reverse (22200020122112), we get a palindrome (43322122122334).

The spelling of 21122102000222 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred two million, two hundred twenty-two", and thus it is an aban number.