102221002220 has 24 divisors (see below), whose sum is σ = 217250422704. Its totient is φ = 40395768896.

The previous prime is 102221002211. The next prime is 102221002259. The reversal of 102221002220 is 22200122201.

It is a super-2 number, since 2×102221002220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102221002195 and 102221002204.

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, 30787799 + ... + 30791118.

It is an arithmetic number, because the mean of its divisors is an integer number (9052100946).

Almost surely, 2^102221002220 is an apocalyptic number.

102221002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102221002220 is an abundant number, since it is smaller than the sum of its proper divisors (115029420484).

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

102221002220 is a wasteful number, since it uses less digits than its factorization.

102221002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61579009 (or 61579007 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 102221002220 its reverse (22200122201), we get a palindrome (124421124421).

The spelling of 102221002220 in words is "one hundred two billion, two hundred twenty-one million, two thousand, two hundred twenty".