32102012220 has 96 divisors (see below), whose sum is σ = 95209950528. Its totient is φ = 8053850112.

The previous prime is 32102012219. The next prime is 32102012221. The reversal of 32102012220 is 2221020123.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (32102012219) and next prime (32102012221).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 32102012220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32102012221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3766684 + ... + 3775196.

It is an arithmetic number, because the mean of its divisors is an integer number (991770318).

Almost surely, 2^32102012220 is an apocalyptic number.

32102012220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32102012220 is an abundant number, since it is smaller than the sum of its proper divisors (63107938308).

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

32102012220 is a wasteful number, since it uses less digits than its factorization.

32102012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12239 (or 12237 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 32102012220 its reverse (2221020123), we get a palindrome (34323032343).

The spelling of 32102012220 in words is "thirty-two billion, one hundred two million, twelve thousand, two hundred twenty".