102021204000 has 96 divisors (see below), whose sum is σ = 334221503616. Its totient is φ = 27205651200.

The previous prime is 102021203957. The next prime is 102021204001. The reversal of 102021204000 is 402120201.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is not an unprimeable number, because it can be changed into a prime (102021204001) 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, 4238884 + ... + 4262883.

It is an arithmetic number, because the mean of its divisors is an integer number (3481473996).

Almost surely, 2^102021204000 is an apocalyptic number.

102021204000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021204000 is an abundant number, since it is smaller than the sum of its proper divisors (232200299616).

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

102021204000 is an equidigital number, since it uses as much as digits as its factorization.

102021204000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8501795 (or 8501777 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 102021204000 its reverse (402120201), we get a palindrome (102423324201).

The spelling of 102021204000 in words is "one hundred two billion, twenty-one million, two hundred four thousand".