22121313143 has 16 divisors (see below), whose sum is σ = 23036317920. Its totient is φ = 21227097600.

The previous prime is 22121313127. The next prime is 22121313163. The reversal of 22121313143 is 34131312122.

It is a cyclic number.

It is not a de Polignac number, because 22121313143 - 2⁴ = 22121313127 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 (22121313163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594188 + ... + 630318.

It is an arithmetic number, because the mean of its divisors is an integer number (1439769870).

Almost surely, 2^22121313143 is an apocalyptic number.

22121313143 is a deficient number, since it is larger than the sum of its proper divisors (915004777).

22121313143 is a wasteful number, since it uses less digits than its factorization.

22121313143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36418.

The product of its digits is 864, while the sum is 23.

Adding to 22121313143 its reverse (34131312122), we get a palindrome (56252625265).

The spelling of 22121313143 in words is "twenty-two billion, one hundred twenty-one million, three hundred thirteen thousand, one hundred forty-three".