102012020111200 has 72 divisors (see below), whose sum is σ = 249072037588080. Its totient is φ = 40799041574400.

The previous prime is 102012020111179. The next prime is 102012020111203. The reversal of 102012020111200 is 2111020210201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012020111203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3343371 + ... + 14669770.

It is an arithmetic number, because the mean of its divisors is an integer number (3459333855390).

Almost surely, 2^{102012020111200} is an apocalyptic number.

102012020111200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102012020111200 is an abundant number, since it is smaller than the sum of its proper divisors (147060017476880).

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

102012020111200 is a wasteful number, since it uses less digits than its factorization.

102012020111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18020240 (or 18020227 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102012020111200 its reverse (2111020210201), we get a palindrome (104123040321401).

Subtracting from 102012020111200 its reverse (2111020210201), we obtain a palindrome (99900999900999).

The spelling of 102012020111200 in words is "one hundred two trillion, twelve billion, twenty million, one hundred eleven thousand, two hundred".