102121101210112 has 40 divisors (see below), whose sum is σ = 204068817582300. Its totient is φ = 51054026625024.

The previous prime is 102121101210091. The next prime is 102121101210173. The reversal of 102121101210112 is 211012101121201.

It can be written as a sum of positive squares in 2 ways, for example, as 102058809037056 + 62292173056 = 10102416^2 + 249584^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 8729787 + ... + 16746682.

Almost surely, 2^{102121101210112} is an apocalyptic number.

It is an amenable number.

102121101210112 is a deficient number, since it is larger than the sum of its proper divisors (101947716372188).

102121101210112 is an frugal number, since it uses more digits than its factorization.

102121101210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25484316 (or 25484300 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 102121101210112 its reverse (211012101121201), we get a palindrome (313133202331313).

The spelling of 102121101210112 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred one million, two hundred ten thousand, one hundred twelve".