101221131032 has 24 divisors (see below), whose sum is σ = 220775682060. Its totient is φ = 43380484560.

The previous prime is 101221130999. The next prime is 101221131061. The reversal of 101221131032 is 230131122101.

It is a self number, because there is not a number n which added to its sum of digits gives 101221131032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129108194 + ... + 129108977.

Almost surely, 2^101221131032 is an apocalyptic number.

It is an amenable number.

101221131032 is an abundant number, since it is smaller than the sum of its proper divisors (119554551028).

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

101221131032 is a wasteful number, since it uses less digits than its factorization.

101221131032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258217191 (or 258217180 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101221131032 its reverse (230131122101), we get a palindrome (331352253133).

The spelling of 101221131032 in words is "one hundred one billion, two hundred twenty-one million, one hundred thirty-one thousand, thirty-two".