220221021100122 has 48 divisors (see below), whose sum is σ = 545315495699520. Its totient is φ = 62919564751296.

The previous prime is 220221021100103. The next prime is 220221021100151. The reversal of 220221021100122 is 221001120122022.

It is a happy number.

220221021100122 is a `hidden beast` number, since 220 + 2 + 210 + 2 + 110 + 0 + 122 = 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 = 220221021100095 and 220221021100104.

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, 898654 + ... + 21005942.

It is an arithmetic number, because the mean of its divisors is an integer number (11360739493740).

Almost surely, 2^{220221021100122} is an apocalyptic number.

220221021100122 is an abundant number, since it is smaller than the sum of its proper divisors (325094474599398).

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

220221021100122 is a wasteful number, since it uses less digits than its factorization.

220221021100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20194227 (or 20194224 counting only the distinct ones).

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

Adding to 220221021100122 its reverse (221001120122022), we get a palindrome (441222141222144).

The spelling of 220221021100122 in words is "two hundred twenty trillion, two hundred twenty-one billion, twenty-one million, one hundred thousand, one hundred twenty-two".