212102222202101 has 32 divisors (see below), whose sum is σ = 267060908563200. Its totient is φ = 163635893568000.

The previous prime is 212102222202097. The next prime is 212102222202107. The reversal of 212102222202101 is 101202222201212.

It is not a de Polignac number, because 212102222202101 - 2² = 212102222202097 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 (212102222202107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819947555 + ... + 820206191.

It is an arithmetic number, because the mean of its divisors is an integer number (8345653392600).

Almost surely, 2^{212102222202101} is an apocalyptic number.

It is an amenable number.

212102222202101 is a deficient number, since it is larger than the sum of its proper divisors (54958686361099).

212102222202101 is a wasteful number, since it uses less digits than its factorization.

212102222202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364205.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212102222202101 its reverse (101202222201212), we get a palindrome (313304444403313).

The spelling of 212102222202101 in words is "two hundred twelve trillion, one hundred two billion, two hundred twenty-two million, two hundred two thousand, one hundred one".