102221220000 has 120 divisors (see below), whose sum is σ = 335306242656. Its totient is φ = 27258976000.

The previous prime is 102221219993. The next prime is 102221220001. The reversal of 102221220000 is 22122201.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (102221220001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 791844 + ... + 911843.

Almost surely, 2^102221220000 is an apocalyptic number.

102221220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102221220000 is an abundant number, since it is smaller than the sum of its proper divisors (233085022656).

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

102221220000 is an equidigital number, since it uses as much as digits as its factorization.

102221220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703720 (or 1703697 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 102221220000 its reverse (22122201), we get a palindrome (102243342201).

The spelling of 102221220000 in words is "one hundred two billion, two hundred twenty-one million, two hundred twenty thousand".