22145431405411 has 4 divisors (see below), whose sum is σ = 22183157864952. Its totient is φ = 22107704945872.

The previous prime is 22145431405381. The next prime is 22145431405457. The reversal of 22145431405411 is 11450413454122.

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 22145431405411 - 2¹⁷ = 22145431274339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22145431405711) 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, 18863228890 + ... + 18863230063.

It is an arithmetic number, because the mean of its divisors is an integer number (5545789466238).

Almost surely, 2^{22145431405411} is an apocalyptic number.

22145431405411 is a deficient number, since it is larger than the sum of its proper divisors (37726459541).

22145431405411 is an equidigital number, since it uses as much as digits as its factorization.

22145431405411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37726459540.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 22145431405411 its reverse (11450413454122), we get a palindrome (33595844859533).

The spelling of 22145431405411 in words is "twenty-two trillion, one hundred forty-five billion, four hundred thirty-one million, four hundred five thousand, four hundred eleven".