221214012231100 has 72 divisors (see below), whose sum is σ = 560283319572480. Its totient is φ = 74231084944320.

The previous prime is 221214012231029. The next prime is 221214012231211. The reversal of 221214012231100 is 1132210412122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3361882180 + ... + 3361947979.

It is an arithmetic number, because the mean of its divisors is an integer number (7781712771840).

Almost surely, 2^{221214012231100} is an apocalyptic number.

221214012231100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221214012231100 is an abundant number, since it is smaller than the sum of its proper divisors (339069307341380).

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

221214012231100 is a wasteful number, since it uses less digits than its factorization.

221214012231100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6723830227 (or 6723830220 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 221214012231100 its reverse (1132210412122), we get a palindrome (222346222643222).

The spelling of 221214012231100 in words is "two hundred twenty-one trillion, two hundred fourteen billion, twelve million, two hundred thirty-one thousand, one hundred".