202221100210212 has 24 divisors (see below), whose sum is σ = 524276926471200. Its totient is φ = 67407033403368.

The previous prime is 202221100210177. The next prime is 202221100210219. The reversal of 202221100210212 is 212012001122202.

It is a happy number.

202221100210212 is a `hidden beast` number, since 20 + 2 + 221 + 1 + 0 + 0 + 210 + 212 = 666.

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 (202221100210219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936208797162 + ... + 936208797377.

It is an arithmetic number, because the mean of its divisors is an integer number (21844871936300).

Almost surely, 2^{202221100210212} is an apocalyptic number.

It is an amenable number.

202221100210212 is an abundant number, since it is smaller than the sum of its proper divisors (322055826260988).

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

202221100210212 is a wasteful number, since it uses less digits than its factorization.

202221100210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872417594552 (or 1872417594544 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202221100210212 its reverse (212012001122202), we get a palindrome (414233101332414).

The spelling of 202221100210212 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred million, two hundred ten thousand, two hundred twelve".