22021102111001 has 4 divisors (see below), whose sum is σ = 25166973841152. Its totient is φ = 18875230380852.

The previous prime is 22021102110989. The next prime is 22021102111007. The reversal of 22021102111001 is 10011120112022.

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 a de Polignac number, because none of the positive numbers 2^k-22021102111001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021102111007) 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, 1572935865065 + ... + 1572935865078.

It is an arithmetic number, because the mean of its divisors is an integer number (6291743460288).

Almost surely, 2^{22021102111001} is an apocalyptic number.

It is an amenable number.

22021102111001 is a deficient number, since it is larger than the sum of its proper divisors (3145871730151).

22021102111001 is an equidigital number, since it uses as much as digits as its factorization.

22021102111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145871730150.

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

Adding to 22021102111001 its reverse (10011120112022), we get a palindrome (32032222223023).

It can be divided in two parts, 220211021 and 11001, that added together give a palindrome (220222022).

The spelling of 22021102111001 in words is "twenty-two trillion, twenty-one billion, one hundred two million, one hundred eleven thousand, one".