102212220020 has 24 divisors (see below), whose sum is σ = 214654212864. Its totient is φ = 40883259296.

The previous prime is 102212220007. The next prime is 102212220067. The reversal of 102212220020 is 20022212201.

It is a junction number, because it is equal to n+sod(n) for n = 102212219977 and 102212220004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499409 + ... + 673671.

It is an arithmetic number, because the mean of its divisors is an integer number (8943925536).

Almost surely, 2^102212220020 is an apocalyptic number.

102212220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102212220020 is an abundant number, since it is smaller than the sum of its proper divisors (112441992844).

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

102212220020 is a wasteful number, since it uses less digits than its factorization.

102212220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203599 (or 203597 counting only the distinct ones).

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

Adding to 102212220020 its reverse (20022212201), we get a palindrome (122234432221).

The spelling of 102212220020 in words is "one hundred two billion, two hundred twelve million, two hundred twenty thousand, twenty".