102100112121222 has 48 divisors (see below), whose sum is σ = 226005533425152. Its totient is φ = 33303387308400.

The previous prime is 102100112121187. The next prime is 102100112121229. The reversal of 102100112121222 is 222121211001201.

102100112121222 is a `hidden beast` number, since 1 + 0 + 210 + 0 + 112 + 121 + 222 = 666.

It is a super-2 number, since 2×102100112121222² (a number of 29 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 102100112121195 and 102100112121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100112121229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280149438 + ... + 280513649.

It is an arithmetic number, because the mean of its divisors is an integer number (4708448613024).

Almost surely, 2^{102100112121222} is an apocalyptic number.

102100112121222 is an abundant number, since it is smaller than the sum of its proper divisors (123905421303930).

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

102100112121222 is a wasteful number, since it uses less digits than its factorization.

102100112121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560663313 (or 560663310 counting only the distinct ones).

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

Adding to 102100112121222 its reverse (222121211001201), we get a palindrome (324221323122423).

The spelling of 102100112121222 in words is "one hundred two trillion, one hundred billion, one hundred twelve million, one hundred twenty-one thousand, two hundred twenty-two".