102000012121200 has 120 divisors (see below), whose sum is σ = 326896606528128. Its totient is φ = 27186969501440.

The previous prime is 102000012121171. The next prime is 102000012121213. The reversal of 102000012121200 is 2121210000201.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17859762 + ... + 22868561.

Almost surely, 2^{102000012121200} is an apocalyptic number.

102000012121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102000012121200 is an abundant number, since it is smaller than the sum of its proper divisors (224896594406928).

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

102000012121200 is a wasteful number, since it uses less digits than its factorization.

102000012121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40730431 (or 40730420 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102000012121200 its reverse (2121210000201), we get a palindrome (104121222121401).

The spelling of 102000012121200 in words is "one hundred two trillion, twelve million, one hundred twenty-one thousand, two hundred".