220222010122121 has 32 divisors (see below), whose sum is σ = 263231040995328. Its totient is φ = 180265963993920.

The previous prime is 220222010122019. The next prime is 220222010122139. The reversal of 220222010122121 is 121221010222022.

It is not a de Polignac number, because 220222010122121 - 2¹⁰ = 220222010121097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220222010122093 and 220222010122102.

It is not an unprimeable number, because it can be changed into a prime (220222010122141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8824676 + ... + 22766618.

It is an arithmetic number, because the mean of its divisors is an integer number (8225970031104).

Almost surely, 2^{220222010122121} is an apocalyptic number.

It is an amenable number.

220222010122121 is a deficient number, since it is larger than the sum of its proper divisors (43009030873207).

220222010122121 is a wasteful number, since it uses less digits than its factorization.

220222010122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13942941.

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

Adding to 220222010122121 its reverse (121221010222022), we get a palindrome (341443020344143).

Subtracting from 220222010122121 its reverse (121221010222022), we obtain a palindrome (99000999900099).

The spelling of 220222010122121 in words is "two hundred twenty trillion, two hundred twenty-two billion, ten million, one hundred twenty-two thousand, one hundred twenty-one".