102221021122220 has 192 divisors, whose sum is σ = 293658513232896. Its totient is φ = 28855333278720.

The previous prime is 102221021122217. The next prime is 102221021122243. The reversal of 102221021122220 is 22221120122201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102221021122192 and 102221021122201.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47108234 + ... + 49230353.

It is an arithmetic number, because the mean of its divisors is an integer number (1529471423088).

Almost surely, 2^{102221021122220} is an apocalyptic number.

102221021122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102221021122220 is an abundant number, since it is smaller than the sum of its proper divisors (191437492110676).

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

102221021122220 is a wasteful number, since it uses less digits than its factorization.

102221021122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96338680 (or 96338678 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102221021122220 its reverse (22221120122201), we get a palindrome (124442141244421).

The spelling of 102221021122220 in words is "one hundred two trillion, two hundred twenty-one billion, twenty-one million, one hundred twenty-two thousand, two hundred twenty".