22121510102 has 4 divisors (see below), whose sum is σ = 33182265156. Its totient is φ = 11060755050.

The previous prime is 22121510071. The next prime is 22121510111. The reversal of 22121510102 is 20101512122.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×22121510102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530377524 + ... + 5530377527.

It is an arithmetic number, because the mean of its divisors is an integer number (8295566289).

Almost surely, 2^22121510102 is an apocalyptic number.

22121510102 is a deficient number, since it is larger than the sum of its proper divisors (11060755054).

22121510102 is a wasteful number, since it uses less digits than its factorization.

22121510102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060755053.

The product of its (nonzero) digits is 80, while the sum is 17.

The spelling of 22121510102 in words is "twenty-two billion, one hundred twenty-one million, five hundred ten thousand, one hundred two".