212110022122101 has 20 divisors (see below), whose sum is σ = 321584901799392. Its totient is φ = 139296133927368.

The previous prime is 212110022122099. The next prime is 212110022122111. The reversal of 212110022122101 is 101221220011212.

212110022122101 is a `hidden beast` number, since 2 + 121 + 100 + 221 + 221 + 0 + 1 = 666.

212110022122101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212110022122101 - 2¹ = 212110022122099 is a prime.

It is a super-2 number, since 2×212110022122101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110022122111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19542100905 + ... + 19542111758.

Almost surely, 2^{212110022122101} is an apocalyptic number.

It is an amenable number.

212110022122101 is a deficient number, since it is larger than the sum of its proper divisors (109474879677291).

212110022122101 is an equidigital number, since it uses as much as digits as its factorization.

212110022122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39084212742 (or 39084212733 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212110022122101 its reverse (101221220011212), we get a palindrome (313331242133313).

The spelling of 212110022122101 in words is "two hundred twelve trillion, one hundred ten billion, twenty-two million, one hundred twenty-two thousand, one hundred one".