22121112012102 has 24 divisors (see below), whose sum is σ = 47930025345384. Its totient is φ = 7373557954944.

The previous prime is 22121112012091. The next prime is 22121112012121. The reversal of 22121112012102 is 20121021112122.

22121112012102 is a `hidden beast` number, since 221 + 21 + 11 + 201 + 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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11234788 + ... + 13056135.

It is an arithmetic number, because the mean of its divisors is an integer number (1997084389391).

Almost surely, 2^{22121112012102} is an apocalyptic number.

22121112012102 is an abundant number, since it is smaller than the sum of its proper divisors (25808913333282).

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

22121112012102 is a wasteful number, since it uses less digits than its factorization.

22121112012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24341524 (or 24341521 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22121112012102 its reverse (20121021112122), we get a palindrome (42242133124224).

The spelling of 22121112012102 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twelve million, twelve thousand, one hundred two".