202111121022102 has 48 divisors (see below), whose sum is σ = 438890158231200. Its totient is φ = 67219189632000.

The previous prime is 202111121022073. The next prime is 202111121022179. The reversal of 202111121022102 is 201220121111202.

202111121022102 is a `hidden beast` number, since 20 + 211 + 1 + 1 + 210 + 221 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 572845527 + ... + 573198237.

It is an arithmetic number, because the mean of its divisors is an integer number (9143544963150).

Almost surely, 2^{202111121022102} is an apocalyptic number.

202111121022102 is an abundant number, since it is smaller than the sum of its proper divisors (236779037209098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202111121022102 is a wasteful number, since it uses less digits than its factorization.

202111121022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424069 (or 424066 counting only the distinct ones).

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

Adding to 202111121022102 its reverse (201220121111202), we get a palindrome (403331242133304).

The spelling of 202111121022102 in words is "two hundred two trillion, one hundred eleven billion, one hundred twenty-one million, twenty-two thousand, one hundred two".