22131221352102 has 12 divisors (see below), whose sum is σ = 47950979596260. Its totient is φ = 7377073784028.

The previous prime is 22131221352101. The next prime is 22131221352103. The reversal of 22131221352102 is 20125312213122.

22131221352102 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 122 + 13 + 521 + 0 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (22131221352101) and next prime (22131221352103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131221352101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 614756148652 + ... + 614756148687.

It is an arithmetic number, because the mean of its divisors is an integer number (3995914966355).

Almost surely, 2^{22131221352102} is an apocalyptic number.

22131221352102 is an abundant number, since it is smaller than the sum of its proper divisors (25819758244158).

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

22131221352102 is a wasteful number, since it uses less digits than its factorization.

22131221352102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229512297347 (or 1229512297344 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 22131221352102 its reverse (20125312213122), we get a palindrome (42256533565224).

The spelling of 22131221352102 in words is "twenty-two trillion, one hundred thirty-one billion, two hundred twenty-one million, three hundred fifty-two thousand, one hundred two".