212200320402 has 40 divisors (see below), whose sum is σ = 543412463616. Its totient is φ = 60628662648.

The previous prime is 212200320391. The next prime is 212200320403. The reversal of 212200320402 is 204023002212.

212200320402 is a `hidden beast` number, since 21 + 220 + 0 + 3 + 20 + 402 = 666.

It is a super-2 number, since 2×212200320402² (a number of 23 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (212200320403) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 93561618 + ... + 93563885.

Almost surely, 2^212200320402 is an apocalyptic number.

212200320402 is an abundant number, since it is smaller than the sum of its proper divisors (331212143214).

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

212200320402 is a wasteful number, since it uses less digits than its factorization.

212200320402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187125524 (or 187125515 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 212200320402 its reverse (204023002212), we get a palindrome (416223322614).

The spelling of 212200320402 in words is "two hundred twelve billion, two hundred million, three hundred twenty thousand, four hundred two".