220112020001 has 4 divisors (see below), whose sum is σ = 220422474900. Its totient is φ = 219801565104.

The previous prime is 220112019989. The next prime is 220112020013. The reversal of 220112020001 is 100020211022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (220112019989) and next prime (220112020013).

It can be written as a sum of positive squares in 2 ways, for example, as 69471780625 + 150640239376 = 263575^2 + 388124^2 .

It is a cyclic number.

It is not a de Polignac number, because 220112020001 - 2²⁶ = 220044911137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220112020501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155226386 + ... + 155227803.

It is an arithmetic number, because the mean of its divisors is an integer number (55105618725).

Almost surely, 2^220112020001 is an apocalyptic number.

It is an amenable number.

220112020001 is a deficient number, since it is larger than the sum of its proper divisors (310454899).

220112020001 is an equidigital number, since it uses as much as digits as its factorization.

220112020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310454898.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220112020001 its reverse (100020211022), we get a palindrome (320132231023).

The spelling of 220112020001 in words is "two hundred twenty billion, one hundred twelve million, twenty thousand, one".