221210013120 has 56 divisors (see below), whose sum is σ = 702341794704. Its totient is φ = 58989336576.

The previous prime is 221210013083. The next prime is 221210013137. The reversal of 221210013120 is 21310012122.

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 221210013120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115212589 + ... + 115214508.

Almost surely, 2^221210013120 is an apocalyptic number.

221210013120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221210013120 is an abundant number, since it is smaller than the sum of its proper divisors (481131781584).

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

221210013120 is a wasteful number, since it uses less digits than its factorization.

221210013120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230427117 (or 230427107 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 221210013120 its reverse (21310012122), we get a palindrome (242520025242).

The spelling of 221210013120 in words is "two hundred twenty-one billion, two hundred ten million, thirteen thousand, one hundred twenty".