102121202220112 has 20 divisors (see below), whose sum is σ = 208273504528480. Its totient is φ = 48373201051488.

The previous prime is 102121202220047. The next prime is 102121202220127. The reversal of 102121202220112 is 211022202121201.

It is a super-3 number, since 3×102121202220112³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 102121202220112.

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, 167962503348 + ... + 167962503955.

It is an arithmetic number, because the mean of its divisors is an integer number (10413675226424).

Almost surely, 2^{102121202220112} is an apocalyptic number.

It is an amenable number.

102121202220112 is an abundant number, since it is smaller than the sum of its proper divisors (106152302308368).

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

102121202220112 is a wasteful number, since it uses less digits than its factorization.

102121202220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335925007330 (or 335925007324 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102121202220112 its reverse (211022202121201), we get a palindrome (313143404341313).

The spelling of 102121202220112 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty thousand, one hundred twelve".