213122012300 has 36 divisors (see below), whose sum is σ = 472314665760. Its totient is φ = 83434998720.

The previous prime is 213122012267. The next prime is 213122012309. The reversal of 213122012300 is 3210221312.

It is not an unprimeable number, because it can be changed into a prime (213122012309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22667855 + ... + 22677254.

Almost surely, 2^213122012300 is an apocalyptic number.

213122012300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213122012300 is an abundant number, since it is smaller than the sum of its proper divisors (259192653460).

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

213122012300 is a wasteful number, since it uses less digits than its factorization.

213122012300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45345170 (or 45345163 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 213122012300 its reverse (3210221312), we get a palindrome (216332233612).

The spelling of 213122012300 in words is "two hundred thirteen billion, one hundred twenty-two million, twelve thousand, three hundred".