221232230302100 has 36 divisors (see below), whose sum is σ = 480074835681504. Its totient is φ = 88492726973280.

The previous prime is 221232230302063. The next prime is 221232230302141. The reversal of 221232230302100 is 1203032232122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61536377 + ... + 65032223.

It is an arithmetic number, because the mean of its divisors is an integer number (13335412102264).

Almost surely, 2^{221232230302100} is an apocalyptic number.

221232230302100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221232230302100 is an abundant number, since it is smaller than the sum of its proper divisors (258842605379404).

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

221232230302100 is a wasteful number, since it uses less digits than its factorization.

221232230302100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128704 (or 4128697 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 221232230302100 its reverse (1203032232122), we get a palindrome (222435262534222).

The spelling of 221232230302100 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, two hundred thirty million, three hundred two thousand, one hundred".