22434542104021 has 4 divisors (see below), whose sum is σ = 22435681106412. Its totient is φ = 22433403101632.

The previous prime is 22434542104003. The next prime is 22434542104027. The reversal of 22434542104021 is 12040124543422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1568731200100 + 20865810903921 = 1252490^2 + 4567911^2 .

It is a cyclic number.

It is not a de Polignac number, because 22434542104021 - 2⁵ = 22434542103989 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 (22434542104027) 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, 569471650 + ... + 569511043.

It is an arithmetic number, because the mean of its divisors is an integer number (5608920276603).

Almost surely, 2^{22434542104021} is an apocalyptic number.

It is an amenable number.

22434542104021 is a deficient number, since it is larger than the sum of its proper divisors (1139002391).

22434542104021 is a wasteful number, since it uses less digits than its factorization.

22434542104021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139002390.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 22434542104021 its reverse (12040124543422), we get a palindrome (34474666647443).

The spelling of 22434542104021 in words is "twenty-two trillion, four hundred thirty-four billion, five hundred forty-two million, one hundred four thousand, twenty-one".