202100101212 has 12 divisors (see below), whose sum is σ = 471566902856. Its totient is φ = 67366700400.

The previous prime is 202100101171. The next prime is 202100101213. The reversal of 202100101212 is 212101001202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 16841675101 = 202100101212 / (2 + 0 + 2 + 1 + 0 + 0 + 1 + 0 + 1 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202100101213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8420837539 + ... + 8420837562.

Almost surely, 2^202100101212 is an apocalyptic number.

It is an amenable number.

202100101212 is an abundant number, since it is smaller than the sum of its proper divisors (269466801644).

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

202100101212 is a wasteful number, since it uses less digits than its factorization.

202100101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16841675108 (or 16841675106 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 202100101212 its reverse (212101001202), we get a palindrome (414201102414).

The spelling of 202100101212 in words is "two hundred two billion, one hundred million, one hundred one thousand, two hundred twelve".