102044421220 has 24 divisors (see below), whose sum is σ = 244906611264. Its totient is φ = 34986658656.

The previous prime is 102044421197. The next prime is 102044421239. The reversal of 102044421220 is 22124440201.

102044421220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 102044421191 and 102044421200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364444222 + ... + 364444501.

It is an arithmetic number, because the mean of its divisors is an integer number (10204442136).

Almost surely, 2^102044421220 is an apocalyptic number.

102044421220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102044421220 is an abundant number, since it is smaller than the sum of its proper divisors (142862190044).

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

102044421220 is a wasteful number, since it uses less digits than its factorization.

102044421220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728888739 (or 728888737 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 102044421220 its reverse (22124440201), we get a palindrome (124168861421).

The spelling of 102044421220 in words is "one hundred two billion, forty-four million, four hundred twenty-one thousand, two hundred twenty".