32101312220 has 48 divisors (see below), whose sum is σ = 68550300000. Its totient is φ = 12624049920.

The previous prime is 32101312207. The next prime is 32101312253. The reversal of 32101312220 is 2221310123.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3287906 + ... + 3297654.

It is an arithmetic number, because the mean of its divisors is an integer number (1428131250).

Almost surely, 2^32101312220 is an apocalyptic number.

It is an amenable number.

32101312220 is an abundant number, since it is smaller than the sum of its proper divisors (36448987780).

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

32101312220 is a wasteful number, since it uses less digits than its factorization.

32101312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12518 (or 12516 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 32101312220 its reverse (2221310123), we get a palindrome (34322622343).

The spelling of 32101312220 in words is "thirty-two billion, one hundred one million, three hundred twelve thousand, two hundred twenty".