202101101212212 has 36 divisors (see below), whose sum is σ = 512410076383296. Its totient is φ = 67163507951760.

The previous prime is 202101101212207. The next prime is 202101101212237. The reversal of 202101101212212 is 212212101101202.

202101101212212 is a `hidden beast` number, since 2 + 0 + 210 + 110 + 121 + 221 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×202101101212212² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8480228988 + ... + 8480252819.

Almost surely, 2^{202101101212212} is an apocalyptic number.

It is an amenable number.

202101101212212 is an abundant number, since it is smaller than the sum of its proper divisors (310308975171084).

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

202101101212212 is a wasteful number, since it uses less digits than its factorization.

202101101212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16960482148 (or 16960482143 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 202101101212212 its reverse (212212101101202), we get a palindrome (414313202313414).

The spelling of 202101101212212 in words is "two hundred two trillion, one hundred one billion, one hundred one million, two hundred twelve thousand, two hundred twelve".