213221330312100 has 144 divisors (see below), whose sum is σ = 677290705162176. Its totient is φ = 51360783552000.

The previous prime is 213221330311973. The next prime is 213221330312119. The reversal of 213221330312100 is 1213033122312.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205254271 + ... + 206290470.

Almost surely, 2^{213221330312100} is an apocalyptic number.

213221330312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213221330312100 is an abundant number, since it is smaller than the sum of its proper divisors (464069374850076).

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

213221330312100 is a wasteful number, since it uses less digits than its factorization.

213221330312100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411544926 (or 411544919 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 213221330312100 its reverse (1213033122312), we get a palindrome (214434363434412).

The spelling of 213221330312100 in words is "two hundred thirteen trillion, two hundred twenty-one billion, three hundred thirty million, three hundred twelve thousand, one hundred".