211022102121101 has 8 divisors (see below), whose sum is σ = 224098179322680. Its totient is φ = 198019692960768.

The previous prime is 211022102120989. The next prime is 211022102121119. The reversal of 211022102121101 is 101121201220112.

It can be written as a sum of positive squares in 4 ways, for example, as 87324352562500 + 123697749558601 = 9344750^2 + 11121949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211022102121101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211022102121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211022102121121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18417004406 + ... + 18417015863.

It is an arithmetic number, because the mean of its divisors is an integer number (28012272415335).

Almost surely, 2^{211022102121101} is an apocalyptic number.

It is an amenable number.

211022102121101 is a deficient number, since it is larger than the sum of its proper divisors (13076077201579).

211022102121101 is a wasteful number, since it uses less digits than its factorization.

211022102121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36834020623.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211022102121101 its reverse (101121201220112), we get a palindrome (312143303341213).

The spelling of 211022102121101 in words is "two hundred eleven trillion, twenty-two billion, one hundred two million, one hundred twenty-one thousand, one hundred one".