220000020221121 has 16 divisors (see below), whose sum is σ = 341563373714304. Its totient is φ = 123342329395584.

The previous prime is 220000020221117. The next prime is 220000020221143. The reversal of 220000020221121 is 121122020000022.

It is not a de Polignac number, because 220000020221121 - 2² = 220000020221117 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 220000020221121.

It is not an unprimeable number, because it can be changed into a prime (220000020221021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98831993596 + ... + 98831995821.

It is an arithmetic number, because the mean of its divisors is an integer number (21347710857144).

Almost surely, 2^{220000020221121} is an apocalyptic number.

220000020221121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220000020221121 is a deficient number, since it is larger than the sum of its proper divisors (121563353493183).

220000020221121 is a wasteful number, since it uses less digits than its factorization.

220000020221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197663989480.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220000020221121 its reverse (121122020000022), we get a palindrome (341122040221143).

The spelling of 220000020221121 in words is "two hundred twenty trillion, twenty million, two hundred twenty-one thousand, one hundred twenty-one".