202101122212 has 24 divisors (see below), whose sum is σ = 388605178080. Its totient is φ = 91203250560.

The previous prime is 202101122161. The next prime is 202101122227. The reversal of 202101122212 is 212221101202.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16516213 + ... + 16528444.

It is an arithmetic number, because the mean of its divisors is an integer number (16191882420).

Almost surely, 2^202101122212 is an apocalyptic number.

202101122212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202101122212 is a deficient number, since it is larger than the sum of its proper divisors (186504055868).

202101122212 is a wasteful number, since it uses less digits than its factorization.

202101122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33044811 (or 33044809 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202101122212 its reverse (212221101202), we get a palindrome (414322223414).

The spelling of 202101122212 in words is "two hundred two billion, one hundred one million, one hundred twenty-two thousand, two hundred twelve".