102221203100 has 36 divisors (see below), whose sum is σ = 221833890264. Its totient is φ = 40885922880.

The previous prime is 102221203067. The next prime is 102221203109. The reversal of 102221203100 is 1302122201.

It is a happy number.

It is a super-2 number, since 2×102221203100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221203109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3110354 + ... + 3143046.

Almost surely, 2^102221203100 is an apocalyptic number.

102221203100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102221203100 is an abundant number, since it is smaller than the sum of its proper divisors (119612687164).

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

102221203100 is a wasteful number, since it uses less digits than its factorization.

102221203100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63974 (or 63967 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 102221203100 its reverse (1302122201), we get a palindrome (103523325301).

The spelling of 102221203100 in words is "one hundred two billion, two hundred twenty-one million, two hundred three thousand, one hundred".