102221121132 has 72 divisors (see below), whose sum is σ = 278629578864. Its totient is φ = 31411852416.

The previous prime is 102221121113. The next prime is 102221121161. The reversal of 102221121132 is 231121122201.

It is a super-2 number, since 2×102221121132² (a number of 23 digits) contains 22 as substring.

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

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, 220483 + ... + 503045.

It is an arithmetic number, because the mean of its divisors is an integer number (3869855262).

Almost surely, 2^102221121132 is an apocalyptic number.

102221121132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102221121132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139314789432).

102221121132 is an abundant number, since it is smaller than the sum of its proper divisors (176408457732).

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

102221121132 is a wasteful number, since it uses less digits than its factorization.

102221121132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283359 (or 283354 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 102221121132 its reverse (231121122201), we get a palindrome (333342243333).

The spelling of 102221121132 in words is "one hundred two billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred thirty-two".