22120111021001 has 4 divisors (see below), whose sum is σ = 25280126881152. Its totient is φ = 18960095160852.

The previous prime is 22120111020949. The next prime is 22120111021007. The reversal of 22120111021001 is 10012011102122.

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 22120111021001 - 2³⁰ = 22119037279177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120111021007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1580007930065 + ... + 1580007930078.

It is an arithmetic number, because the mean of its divisors is an integer number (6320031720288).

Almost surely, 2^{22120111021001} is an apocalyptic number.

It is an amenable number.

22120111021001 is a deficient number, since it is larger than the sum of its proper divisors (3160015860151).

22120111021001 is an equidigital number, since it uses as much as digits as its factorization.

22120111021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160015860150.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22120111021001 its reverse (10012011102122), we get a palindrome (32132122123123).

The spelling of 22120111021001 in words is "twenty-two trillion, one hundred twenty billion, one hundred eleven million, twenty-one thousand, one".