220102112020121 has 16 divisors (see below), whose sum is σ = 223322194344960. Its totient is φ = 216892902320640.

The previous prime is 220102112020081. The next prime is 220102112020169. The reversal of 220102112020121 is 121020211201022.

It is a cyclic number.

It is not a de Polignac number, because 220102112020121 - 2⁶ = 220102112020057 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 220102112020121.

It is not an unprimeable number, because it can be changed into a prime (220102112028121) 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, 2605857536 + ... + 2605941998.

It is an arithmetic number, because the mean of its divisors is an integer number (13957637146560).

Almost surely, 2^{220102112020121} is an apocalyptic number.

It is an amenable number.

220102112020121 is a deficient number, since it is larger than the sum of its proper divisors (3220082324839).

220102112020121 is an equidigital number, since it uses as much as digits as its factorization.

220102112020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148376.

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

Adding to 220102112020121 its reverse (121020211201022), we get a palindrome (341122323221143).

The spelling of 220102112020121 in words is "two hundred twenty trillion, one hundred two billion, one hundred twelve million, twenty thousand, one hundred twenty-one".