220211001222121 has 16 divisors (see below), whose sum is σ = 272823818138368. Its totient is φ = 173079019944000.

The previous prime is 220211001222089. The next prime is 220211001222139. The reversal of 220211001222121 is 121222100112022.

220211001222121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 220211001222121 - 2⁵ = 220211001222089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220211001228121) 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, 8012903850 + ... + 8012931331.

It is an arithmetic number, because the mean of its divisors is an integer number (17051488633648).

Almost surely, 2^{220211001222121} is an apocalyptic number.

It is an amenable number.

220211001222121 is a deficient number, since it is larger than the sum of its proper divisors (52612816916247).

220211001222121 is a wasteful number, since it uses less digits than its factorization.

220211001222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16025835352.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220211001222121 its reverse (121222100112022), we get a palindrome (341433101334143).

The spelling of 220211001222121 in words is "two hundred twenty trillion, two hundred eleven billion, one million, two hundred twenty-two thousand, one hundred twenty-one".