102221000220220 has 48 divisors (see below), whose sum is σ = 245360732137920. Its totient is φ = 35042866988544.

The previous prime is 102221000220181. The next prime is 102221000220221. The reversal of 102221000220220 is 22022000122201.

It is a junction number, because it is equal to n+sod(n) for n = 102221000220194 and 102221000220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221000220221) 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, 43999819 + ... + 46264738.

It is an arithmetic number, because the mean of its divisors is an integer number (5111681919540).

Almost surely, 2^{102221000220220} is an apocalyptic number.

102221000220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102221000220220 is an abundant number, since it is smaller than the sum of its proper divisors (143139731917700).

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

102221000220220 is a wasteful number, since it uses less digits than its factorization.

102221000220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90272662 (or 90272660 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 102221000220220 its reverse (22022000122201), we get a palindrome (124243000342421).

The spelling of 102221000220220 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred twenty thousand, two hundred twenty".