202102101212 has 24 divisors (see below), whose sum is σ = 385882019712. Its totient is φ = 91852511600.

The previous prime is 202102101211. The next prime is 202102101277. The reversal of 202102101212 is 212101201202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102101211) 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, 40787 + ... + 637077.

It is an arithmetic number, because the mean of its divisors is an integer number (16078417488).

Almost surely, 2^202102101212 is an apocalyptic number.

202102101212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202102101212 is a deficient number, since it is larger than the sum of its proper divisors (183779918500).

202102101212 is a wasteful number, since it uses less digits than its factorization.

202102101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604009 (or 604007 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202102101212 its reverse (212101201202), we get a palindrome (414203302414).

The spelling of 202102101212 in words is "two hundred two billion, one hundred two million, one hundred one thousand, two hundred twelve".