220000122121 has 8 divisors (see below), whose sum is σ = 237155728320. Its totient is φ = 202877733072.

The previous prime is 220000122109. The next prime is 220000122149. The reversal of 220000122121 is 121221000022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220000122121 - 2³³ = 211410187529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220000122151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8290525 + ... + 8317018.

It is an arithmetic number, because the mean of its divisors is an integer number (29644466040).

Almost surely, 2^220000122121 is an apocalyptic number.

It is an amenable number.

220000122121 is a deficient number, since it is larger than the sum of its proper divisors (17155606199).

220000122121 is a wasteful number, since it uses less digits than its factorization.

220000122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16608575.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220000122121 its reverse (121221000022), we get a palindrome (341221122143).

The spelling of 220000122121 in words is "two hundred twenty billion, one hundred twenty-two thousand, one hundred twenty-one".