220211120002121 has 16 divisors (see below), whose sum is σ = 226412403275520. Its totient is φ = 214050782225280.

The previous prime is 220211120002061. The next prime is 220211120002123. The reversal of 220211120002121 is 121200021112022.

It is a cyclic number.

It is not a de Polignac number, because 220211120002121 - 2³⁰ = 220210046260297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220211120002121.

It is not an unprimeable number, because it can be changed into a prime (220211120002123) 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, 3708251 + ... + 21311343.

It is an arithmetic number, because the mean of its divisors is an integer number (14150775204720).

Almost surely, 2^{220211120002121} is an apocalyptic number.

It is an amenable number.

220211120002121 is a deficient number, since it is larger than the sum of its proper divisors (6201283273399).

220211120002121 is a wasteful number, since it uses less digits than its factorization.

220211120002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17604256.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220211120002121 its reverse (121200021112022), we get a palindrome (341411141114143).

The spelling of 220211120002121 in words is "two hundred twenty trillion, two hundred eleven billion, one hundred twenty million, two thousand, one hundred twenty-one".