102224021220 has 96 divisors (see below), whose sum is σ = 322777123200. Its totient is φ = 26852867712.

The previous prime is 102224021197. The next prime is 102224021239. The reversal of 102224021220 is 22120422201.

102224021220 is a `hidden beast` number, since 10 + 222 + 402 + 12 + 20 = 666.

102224021220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102224021193 and 102224021202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1376535 + ... + 1448894.

It is an arithmetic number, because the mean of its divisors is an integer number (3362261700).

Almost surely, 2^102224021220 is an apocalyptic number.

102224021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102224021220 is an abundant number, since it is smaller than the sum of its proper divisors (220553101980).

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

102224021220 is a wasteful number, since it uses less digits than its factorization.

102224021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825514 (or 2825506 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 102224021220 its reverse (22120422201), we get a palindrome (124344443421).

The spelling of 102224021220 in words is "one hundred two billion, two hundred twenty-four million, twenty-one thousand, two hundred twenty".