212210222020101 has 24 divisors (see below), whose sum is σ = 315596036619864. Its totient is φ = 137322284682240.

The previous prime is 212210222020087. The next prime is 212210222020169. The reversal of 212210222020101 is 101020222012212.

It is a happy number.

212210222020101 is a `hidden beast` number, since 21 + 221 + 0 + 2 + 220 + 201 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 23103691956900 + 189106530063201 = 4806630^2 + 13751601^2 .

It is not a de Polignac number, because 212210222020101 - 2¹⁹ = 212210221495813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210222020001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1459560436 + ... + 1459705821.

It is an arithmetic number, because the mean of its divisors is an integer number (13149834859161).

Almost surely, 2^{212210222020101} is an apocalyptic number.

It is an amenable number.

212210222020101 is a deficient number, since it is larger than the sum of its proper divisors (103385814599763).

212210222020101 is a wasteful number, since it uses less digits than its factorization.

212210222020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919266501 (or 2919266498 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212210222020101 its reverse (101020222012212), we get a palindrome (313230444032313).

The spelling of 212210222020101 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twenty-two million, twenty thousand, one hundred one".