202112100101 has 4 divisors (see below), whose sum is σ = 202113547104. Its totient is φ = 202110653100.

The previous prime is 202112100083. The next prime is 202112100109. The reversal of 202112100101 is 101001211202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202112100101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112100109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488555 + ... + 801816.

It is an arithmetic number, because the mean of its divisors is an integer number (50528386776).

Almost surely, 2^202112100101 is an apocalyptic number.

It is an amenable number.

202112100101 is a deficient number, since it is larger than the sum of its proper divisors (1447003).

202112100101 is a wasteful number, since it uses less digits than its factorization.

202112100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447002.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 202112100101 its reverse (101001211202), we get a palindrome (303113311303).

The spelling of 202112100101 in words is "two hundred two billion, one hundred twelve million, one hundred thousand, one hundred one".