213122054200 has 96 divisors (see below), whose sum is σ = 540665730000. Its totient is φ = 77483059200.

The previous prime is 213122054137. The next prime is 213122054207. The reversal of 213122054200 is 2450221312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213122054207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19110226 + ... + 19121374.

Almost surely, 2^213122054200 is an apocalyptic number.

213122054200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213122054200 is an abundant number, since it is smaller than the sum of its proper divisors (327543675800).

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

213122054200 is a wasteful number, since it uses less digits than its factorization.

213122054200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19865 (or 19856 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 213122054200 its reverse (2450221312), we get a palindrome (215572275512).

The spelling of 213122054200 in words is "two hundred thirteen billion, one hundred twenty-two million, fifty-four thousand, two hundred".