20221001111101 has 4 divisors (see below), whose sum is σ = 23109715555552. Its totient is φ = 17332286666652.

The previous prime is 20221001111057. The next prime is 20221001111137. The reversal of 20221001111101 is 10111110012202.

It is a happy number.

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 20221001111101 - 2³⁷ = 20083562157629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221001111191) 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, 1444357222215 + ... + 1444357222228.

It is an arithmetic number, because the mean of its divisors is an integer number (5777428888888).

Almost surely, 2^{20221001111101} is an apocalyptic number.

It is an amenable number.

20221001111101 is a deficient number, since it is larger than the sum of its proper divisors (2888714444451).

20221001111101 is an equidigital number, since it uses as much as digits as its factorization.

20221001111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888714444450.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20221001111101 its reverse (10111110012202), we get a palindrome (30332111123303).

The spelling of 20221001111101 in words is "twenty trillion, two hundred twenty-one billion, one million, one hundred eleven thousand, one hundred one".