22221010212102 has 32 divisors (see below), whose sum is σ = 53178485979360. Its totient is φ = 6837233911200.

The previous prime is 22221010212031. The next prime is 22221010212103. The reversal of 22221010212102 is 20121201012222.

It is a happy number.

22221010212102 is a `hidden beast` number, since 222 + 210 + 1 + 0 + 21 + 210 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221010212103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15826929649 + ... + 15826931052.

It is an arithmetic number, because the mean of its divisors is an integer number (1661827686855).

Almost surely, 2^{22221010212102} is an apocalyptic number.

22221010212102 is an abundant number, since it is smaller than the sum of its proper divisors (30957475767258).

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

22221010212102 is a wasteful number, since it uses less digits than its factorization.

22221010212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31653860725 (or 31653860719 counting only the distinct ones).

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

Adding to 22221010212102 its reverse (20121201012222), we get a palindrome (42342211224324).

The spelling of 22221010212102 in words is "twenty-two trillion, two hundred twenty-one billion, ten million, two hundred twelve thousand, one hundred two".