221330131032 has 16 divisors (see below), whose sum is σ = 553325327640. Its totient is φ = 73776710336.

The previous prime is 221330131031. The next prime is 221330131051. The reversal of 221330131032 is 230131033122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221330131031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4611044373 + ... + 4611044420.

Almost surely, 2^221330131032 is an apocalyptic number.

It is an amenable number.

221330131032 is an abundant number, since it is smaller than the sum of its proper divisors (331995196608).

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

221330131032 is a wasteful number, since it uses less digits than its factorization.

221330131032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9222088802 (or 9222088798 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 221330131032 its reverse (230131033122), we get a palindrome (451461164154).

The spelling of 221330131032 in words is "two hundred twenty-one billion, three hundred thirty million, one hundred thirty-one thousand, thirty-two".