20102220111001 has 4 divisors (see below), whose sum is σ = 22973965841152. Its totient is φ = 17230474380852.

The previous prime is 20102220110993. The next prime is 20102220111013. The reversal of 20102220111001 is 10011102220102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20102220111001 - 2³ = 20102220110993 is a prime.

It is a super-2 number, since 2×20102220111001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102220115001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435872865065 + ... + 1435872865078.

It is an arithmetic number, because the mean of its divisors is an integer number (5743491460288).

Almost surely, 2^{20102220111001} is an apocalyptic number.

It is an amenable number.

20102220111001 is a deficient number, since it is larger than the sum of its proper divisors (2871745730151).

20102220111001 is an equidigital number, since it uses as much as digits as its factorization.

20102220111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871745730150.

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

Adding to 20102220111001 its reverse (10011102220102), we get a palindrome (30113322331103).

The spelling of 20102220111001 in words is "twenty trillion, one hundred two billion, two hundred twenty million, one hundred eleven thousand, one".