102012011200 has 84 divisors (see below), whose sum is σ = 273832743672. Its totient is φ = 37095270400.

The previous prime is 102012011173. The next prime is 102012011221. The reversal of 102012011200 is 2110210201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2880469 + ... + 2915668.

Almost surely, 2^102012011200 is an apocalyptic number.

102012011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102012011200 is an abundant number, since it is smaller than the sum of its proper divisors (171820732472).

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

102012011200 is a wasteful number, since it uses less digits than its factorization.

102012011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796170 (or 5796155 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102012011200 its reverse (2110210201), we get a palindrome (104122221401).

The spelling of 102012011200 in words is "one hundred two billion, twelve million, eleven thousand, two hundred".