212303121210 has 48 divisors (see below), whose sum is σ = 552360672864. Its totient is φ = 56575954656.

The previous prime is 212303121209. The next prime is 212303121223. The reversal of 212303121210 is 12121303212.

212303121210 is a `hidden beast` number, since 2 + 1 + 230 + 312 + 121 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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, 661852 + ... + 928791.

It is an arithmetic number, because the mean of its divisors is an integer number (11507514018).

Almost surely, 2^212303121210 is an apocalyptic number.

212303121210 is an abundant number, since it is smaller than the sum of its proper divisors (340057551654).

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

212303121210 is a wasteful number, since it uses less digits than its factorization.

212303121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592139 (or 1592136 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212303121210 its reverse (12121303212), we get a palindrome (224424424422).

The spelling of 212303121210 in words is "two hundred twelve billion, three hundred three million, one hundred twenty-one thousand, two hundred ten".