202112122101 has 16 divisors (see below), whose sum is σ = 270580191168. Its totient is φ = 134193225600.

The previous prime is 202112122039. The next prime is 202112122117. The reversal of 202112122101 is 101221211202.

It is not a de Polignac number, because 202112122101 - 2⁷ = 202112121973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112122181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1614711 + ... + 1735371.

It is an arithmetic number, because the mean of its divisors is an integer number (16911261948).

Almost surely, 2^202112122101 is an apocalyptic number.

It is an amenable number.

202112122101 is a deficient number, since it is larger than the sum of its proper divisors (68468069067).

202112122101 is a wasteful number, since it uses less digits than its factorization.

202112122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122932.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202112122101 its reverse (101221211202), we get a palindrome (303333333303).

The spelling of 202112122101 in words is "two hundred two billion, one hundred twelve million, one hundred twenty-two thousand, one hundred one".