102221021210 has 128 divisors (see below), whose sum is σ = 234524160000. Its totient is φ = 31800874560.

The previous prime is 102221021173. The next prime is 102221021239. The reversal of 102221021210 is 12120122201.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 22598009 + ... + 22602531.

It is an arithmetic number, because the mean of its divisors is an integer number (1832220000).

Almost surely, 2^102221021210 is an apocalyptic number.

102221021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102221021210 is an abundant number, since it is smaller than the sum of its proper divisors (132303138790).

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

102221021210 is a wasteful number, since it uses less digits than its factorization.

102221021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161 (or 5147 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102221021210 its reverse (12120122201), we get a palindrome (114341143411).

The spelling of 102221021210 in words is "one hundred two billion, two hundred twenty-one million, twenty-one thousand, two hundred ten".