212112202101 has 16 divisors (see below), whose sum is σ = 285921595008. Its totient is φ = 139857408000.

The previous prime is 212112202073. The next prime is 212112202117. The reversal of 212112202101 is 101202211212.

It is not a de Polignac number, because 212112202101 - 2⁶ = 212112202037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112202901) 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, 198501 + ... + 680901.

It is an arithmetic number, because the mean of its divisors is an integer number (17870099688).

Almost surely, 2^212112202101 is an apocalyptic number.

It is an amenable number.

212112202101 is a deficient number, since it is larger than the sum of its proper divisors (73809392907).

212112202101 is a wasteful number, since it uses less digits than its factorization.

212112202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484012.

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

Adding to 212112202101 its reverse (101202211212), we get a palindrome (313314413313).

The spelling of 212112202101 in words is "two hundred twelve billion, one hundred twelve million, two hundred two thousand, one hundred one".