202111010121212 has 12 divisors (see below), whose sum is σ = 354696234478656. Its totient is φ = 100769228841600.

The previous prime is 202111010121191. The next prime is 202111010121221. The reversal of 202111010121212 is 212121010111202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71569053164 + ... + 71569055987.

It is an arithmetic number, because the mean of its divisors is an integer number (29558019539888).

Almost surely, 2^{202111010121212} is an apocalyptic number.

It is an amenable number.

202111010121212 is a deficient number, since it is larger than the sum of its proper divisors (152585224357444).

202111010121212 is a wasteful number, since it uses less digits than its factorization.

202111010121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143138109508 (or 143138109506 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 202111010121212 its reverse (212121010111202), we get a palindrome (414232020232414).

The spelling of 202111010121212 in words is "two hundred two trillion, one hundred eleven billion, ten million, one hundred twenty-one thousand, two hundred twelve".