22141144100021 has 4 divisors (see below), whose sum is σ = 22315483817472. Its totient is φ = 21966804382572.

The previous prime is 22141144100017. The next prime is 22141144100051. The reversal of 22141144100021 is 12000144114122.

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 22141144100021 - 2² = 22141144100017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22141144100021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22141144100051) 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, 87169858535 + ... + 87169858788.

It is an arithmetic number, because the mean of its divisors is an integer number (5578870954368).

Almost surely, 2^{22141144100021} is an apocalyptic number.

It is an amenable number.

22141144100021 is a deficient number, since it is larger than the sum of its proper divisors (174339717451).

22141144100021 is a wasteful number, since it uses less digits than its factorization.

22141144100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174339717450.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 22141144100021 its reverse (12000144114122), we get a palindrome (34141288214143).

The spelling of 22141144100021 in words is "twenty-two trillion, one hundred forty-one billion, one hundred forty-four million, one hundred thousand, twenty-one".