102021220000 has 120 divisors (see below), whose sum is σ = 286843255776. Its totient is φ = 34978656000.

The previous prime is 102021219997. The next prime is 102021220031. The reversal of 102021220000 is 22120201.

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 19 ways as a sum of consecutive naturals, for example, 224362 + ... + 504361.

Almost surely, 2^102021220000 is an apocalyptic number.

102021220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021220000 is an abundant number, since it is smaller than the sum of its proper divisors (184822035776).

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

102021220000 is an frugal number, since it uses more digits than its factorization.

102021220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728760 (or 728737 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 102021220000 its reverse (22120201), we get a palindrome (102043340201).

The spelling of 102021220000 in words is "one hundred two billion, twenty-one million, two hundred twenty thousand".