22102121124 has 72 divisors (see below), whose sum is σ = 61727702400. Its totient is φ = 6632516352.

The previous prime is 22102121117. The next prime is 22102121149. The reversal of 22102121124 is 42112120122.

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

It is a junction number, because it is equal to n+sod(n) for n = 22102121097 and 22102121106.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 771024 + ... + 799175.

It is an arithmetic number, because the mean of its divisors is an integer number (857329200).

Almost surely, 2^22102121124 is an apocalyptic number.

It is an amenable number.

22102121124 is an abundant number, since it is smaller than the sum of its proper divisors (39625581276).

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

22102121124 is a wasteful number, since it uses less digits than its factorization.

22102121124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570249 (or 1570244 counting only the distinct ones).

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

Adding to 22102121124 its reverse (42112120122), we get a palindrome (64214241246).

The spelling of 22102121124 in words is "twenty-two billion, one hundred two million, one hundred twenty-one thousand, one hundred twenty-four".