20442041022101 has 4 divisors (see below), whose sum is σ = 20443240196832. Its totient is φ = 20440841847372.

The previous prime is 20442041022019. The next prime is 20442041022103. The reversal of 20442041022101 is 10122014024402.

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-20442041022101 is a prime.

It is a super-2 number, since 2×20442041022101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442041022103) 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, 599561795 + ... + 599595888.

It is an arithmetic number, because the mean of its divisors is an integer number (5110810049208).

Almost surely, 2^{20442041022101} is an apocalyptic number.

It is an amenable number.

20442041022101 is a deficient number, since it is larger than the sum of its proper divisors (1199174731).

20442041022101 is a wasteful number, since it uses less digits than its factorization.

20442041022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199174730.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 20442041022101 its reverse (10122014024402), we get a palindrome (30564055046503).

The spelling of 20442041022101 in words is "twenty trillion, four hundred forty-two billion, forty-one million, twenty-two thousand, one hundred one".