22561342355111 has 4 divisors (see below), whose sum is σ = 25784391262992. Its totient is φ = 19338293447232.

The previous prime is 22561342355039. The next prime is 22561342355117. The reversal of 22561342355111 is 11155324316522.

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

It is a cyclic number.

It is not a de Polignac number, because 22561342355111 - 2²⁶ = 22561275246247 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 (22561342355117) 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, 1611524453930 + ... + 1611524453943.

It is an arithmetic number, because the mean of its divisors is an integer number (6446097815748).

Almost surely, 2^{22561342355111} is an apocalyptic number.

22561342355111 is a deficient number, since it is larger than the sum of its proper divisors (3223048907881).

22561342355111 is an equidigital number, since it uses as much as digits as its factorization.

22561342355111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223048907880.

The product of its digits is 216000, while the sum is 41.

The spelling of 22561342355111 in words is "twenty-two trillion, five hundred sixty-one billion, three hundred forty-two million, three hundred fifty-five thousand, one hundred eleven".