213200121311220 has 96 divisors (see below), whose sum is σ = 628583136007680. Its totient is φ = 53843612042880.

The previous prime is 213200121311183. The next prime is 213200121311257. The reversal of 213200121311220 is 22113121002312.

It is an interprime number because it is at equal distance from previous prime (213200121311183) and next prime (213200121311257).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26815846 + ... + 33845085.

It is an arithmetic number, because the mean of its divisors is an integer number (6547741000080).

Almost surely, 2^{213200121311220} is an apocalyptic number.

213200121311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213200121311220 is an abundant number, since it is smaller than the sum of its proper divisors (415383014696460).

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

213200121311220 is a wasteful number, since it uses less digits than its factorization.

213200121311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60664045 (or 60664043 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 213200121311220 its reverse (22113121002312), we get a palindrome (235313242313532).

The spelling of 213200121311220 in words is "two hundred thirteen trillion, two hundred billion, one hundred twenty-one million, three hundred eleven thousand, two hundred twenty".