102111222212112 has 80 divisors (see below), whose sum is σ = 266749735799232. Its totient is φ = 33655467171840.

The previous prime is 102111222212057. The next prime is 102111222212113. The reversal of 102111222212112 is 211212222111201.

It is not an unprimeable number, because it can be changed into a prime (102111222212113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4888314 + ... + 15103577.

Almost surely, 2^{102111222212112} is an apocalyptic number.

102111222212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102111222212112 is an abundant number, since it is smaller than the sum of its proper divisors (164638513587120).

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

102111222212112 is a wasteful number, since it uses less digits than its factorization.

102111222212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19993096 (or 19993090 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 102111222212112 its reverse (211212222111201), we get a palindrome (313323444323313).

The spelling of 102111222212112 in words is "one hundred two trillion, one hundred eleven billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twelve".