202111133212 has 24 divisors (see below), whose sum is σ = 354281281200. Its totient is φ = 100887983616.

The previous prime is 202111133177. The next prime is 202111133227. The reversal of 202111133212 is 212331111202.

It is a self number, because there is not a number n which added to its sum of digits gives 202111133212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17585964 + ... + 17597452.

It is an arithmetic number, because the mean of its divisors is an integer number (14761720050).

Almost surely, 2^202111133212 is an apocalyptic number.

It is an amenable number.

202111133212 is a deficient number, since it is larger than the sum of its proper divisors (152170147988).

202111133212 is a wasteful number, since it uses less digits than its factorization.

202111133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18405 (or 18403 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 202111133212 its reverse (212331111202), we get a palindrome (414442244414).

The spelling of 202111133212 in words is "two hundred two billion, one hundred eleven million, one hundred thirty-three thousand, two hundred twelve".