22021122102210 has 192 divisors, whose sum is σ = 71855491129344. Its totient is φ = 4545513936000.

The previous prime is 22021122102191. The next prime is 22021122102241. The reversal of 22021122102210 is 1220122112022.

It is a happy number.

22021122102210 is a `hidden beast` number, since 2 + 20 + 211 + 2 + 210 + 221 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9475594 + ... + 11568453.

It is an arithmetic number, because the mean of its divisors is an integer number (374247349632).

Almost surely, 2^{22021122102210} is an apocalyptic number.

22021122102210 is an abundant number, since it is smaller than the sum of its proper divisors (49834369027134).

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

22021122102210 is a wasteful number, since it uses less digits than its factorization.

22021122102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21044229 (or 21044226 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22021122102210 its reverse (1220122112022), we get a palindrome (23241244214232).

The spelling of 22021122102210 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-two million, one hundred two thousand, two hundred ten".