12210210122220 has 72 divisors (see below), whose sum is σ = 40404695320080. Its totient is φ = 2960050938240.

The previous prime is 12210210122219. The next prime is 12210210122251. The reversal of 12210210122220 is 2222101201221.

It is a happy number.

12210210122220 is a `hidden beast` number, since 1 + 2 + 210 + 210 + 1 + 22 + 220 = 666.

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 = 12210210122193 and 12210210122202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3083384415 + ... + 3083388374.

It is an arithmetic number, because the mean of its divisors is an integer number (561176323890).

Almost surely, 2^{12210210122220} is an apocalyptic number.

12210210122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210210122220 is an abundant number, since it is smaller than the sum of its proper divisors (28194485197860).

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

12210210122220 is a wasteful number, since it uses less digits than its factorization.

12210210122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166772815 (or 6166772810 counting only the distinct ones).

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

Adding to 12210210122220 its reverse (2222101201221), we get a palindrome (14432311323441).

The spelling of 12210210122220 in words is "twelve trillion, two hundred ten billion, two hundred ten million, one hundred twenty-two thousand, two hundred twenty".