102212210212220 has 48 divisors (see below), whose sum is σ = 231123921043680. Its totient is φ = 37827689355264.

The previous prime is 102212210212207. The next prime is 102212210212247. The reversal of 102212210212220 is 22212012212201.

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 = 102212210212192 and 102212210212201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2547642209 + ... + 2547682328.

It is an arithmetic number, because the mean of its divisors is an integer number (4815081688410).

Almost surely, 2^{102212210212220} is an apocalyptic number.

102212210212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102212210212220 is an abundant number, since it is smaller than the sum of its proper divisors (128911710831460).

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

102212210212220 is a wasteful number, since it uses less digits than its factorization.

102212210212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5095324622 (or 5095324620 counting only the distinct ones).

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

Adding to 102212210212220 its reverse (22212012212201), we get a palindrome (124424222424421).

The spelling of 102212210212220 in words is "one hundred two trillion, two hundred twelve billion, two hundred ten million, two hundred twelve thousand, two hundred twenty".