220002120111001 has 8 divisors (see below), whose sum is σ = 225370280910600. Its totient is φ = 214634066712960.

The previous prime is 220002120110957. The next prime is 220002120111019. The reversal of 220002120111001 is 100111021200022.

It can be written as a sum of positive squares in 4 ways, for example, as 4049572646025 + 215952547464976 = 2012355^2 + 14695324^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220002120111001 - 2²⁵ = 220002086556569 is a prime.

It is a super-2 number, since 2×220002120111001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220002120111091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22695846 + ... + 30904783.

It is an arithmetic number, because the mean of its divisors is an integer number (28171285113825).

Almost surely, 2^{220002120111001} is an apocalyptic number.

It is an amenable number.

220002120111001 is a deficient number, since it is larger than the sum of its proper divisors (5368160799599).

220002120111001 is a wasteful number, since it uses less digits than its factorization.

220002120111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53700779.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220002120111001 its reverse (100111021200022), we get a palindrome (320113141311023).

The spelling of 220002120111001 in words is "two hundred twenty trillion, two billion, one hundred twenty million, one hundred eleven thousand, one".