102212100212220 has 144 divisors (see below), whose sum is σ = 310215789112320. Its totient is φ = 27241406438400.

The previous prime is 102212100212213. The next prime is 102212100212227. The reversal of 102212100212220 is 22212001212201.

It is a happy number.

102212100212220 is a `hidden beast` number, since 1 + 0 + 2 + 21 + 210 + 0 + 212 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (102212100212213) and next prime (102212100212227).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102212100212193 and 102212100212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212100212227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3080424030 + ... + 3080457210.

It is an arithmetic number, because the mean of its divisors is an integer number (2154276313280).

Almost surely, 2^{102212100212220} is an apocalyptic number.

102212100212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102212100212220 is an abundant number, since it is smaller than the sum of its proper divisors (208003688900100).

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

102212100212220 is a wasteful number, since it uses less digits than its factorization.

102212100212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42196 (or 42191 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102212100212220 its reverse (22212001212201), we get a palindrome (124424101424421).

The spelling of 102212100212220 in words is "one hundred two trillion, two hundred twelve billion, one hundred million, two hundred twelve thousand, two hundred twenty".