102202211221220 has 24 divisors (see below), whose sum is σ = 234135974798208. Its totient is φ = 37164440444000.

The previous prime is 102202211221207. The next prime is 102202211221261. The reversal of 102202211221220 is 22122112202201.

102202211221220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102202211221192 and 102202211221201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232277752556 + ... + 232277752995.

It is an arithmetic number, because the mean of its divisors is an integer number (9755665616592).

Almost surely, 2^{102202211221220} is an apocalyptic number.

102202211221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102202211221220 is an abundant number, since it is smaller than the sum of its proper divisors (131933763576988).

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

102202211221220 is a wasteful number, since it uses less digits than its factorization.

102202211221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464555505571 (or 464555505569 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102202211221220 its reverse (22122112202201), we get a palindrome (124324323423421).

The spelling of 102202211221220 in words is "one hundred two trillion, two hundred two billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty".