202191190212 has 36 divisors (see below), whose sum is σ = 518567491568. Its totient is φ = 61270057200.

The previous prime is 202191190193. The next prime is 202191190217. The reversal of 202191190212 is 212091191202.

It is a self number, because there is not a number n which added to its sum of digits gives 202191190212.

It is not an unprimeable number, because it can be changed into a prime (202191190217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69623614 + ... + 69626517.

Almost surely, 2^202191190212 is an apocalyptic number.

202191190212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202191190212 is an abundant number, since it is smaller than the sum of its proper divisors (316376301356).

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

202191190212 is a wasteful number, since it uses less digits than its factorization.

202191190212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139250160 (or 139250147 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 202191190212 in words is "two hundred two billion, one hundred ninety-one million, one hundred ninety thousand, two hundred twelve".