202112112121102 has 8 divisors (see below), whose sum is σ = 303223866924456. Its totient is φ = 101037489812952.

The previous prime is 202112112121091. The next prime is 202112112121147. The reversal of 202112112121102 is 201121211211202.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 202112112121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9283110193 + ... + 9283131964.

It is an arithmetic number, because the mean of its divisors is an integer number (37902983365557).

Almost surely, 2^{202112112121102} is an apocalyptic number.

202112112121102 is a deficient number, since it is larger than the sum of its proper divisors (101111754803354).

202112112121102 is a wasteful number, since it uses less digits than its factorization.

202112112121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18566247602.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 202112112121102 its reverse (201121211211202), we get a palindrome (403233323332304).

The spelling of 202112112121102 in words is "two hundred two trillion, one hundred twelve billion, one hundred twelve million, one hundred twenty-one thousand, one hundred two".