22215515112133 has 8 divisors (see below), whose sum is σ = 25389462253568. Its totient is φ = 19041643502064.

The previous prime is 22215515112107. The next prime is 22215515112151. The reversal of 22215515112133 is 33121151551222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22215515112133 is a prime.

It is a super-2 number, since 2×22215515112133² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22215515112173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18251166 + ... + 19430287.

It is an arithmetic number, because the mean of its divisors is an integer number (3173682781696).

Almost surely, 2^{22215515112133} is an apocalyptic number.

It is an amenable number.

22215515112133 is a deficient number, since it is larger than the sum of its proper divisors (3173947141435).

22215515112133 is an equidigital number, since it uses as much as digits as its factorization.

22215515112133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37765683.

The product of its digits is 18000, while the sum is 34.

Adding to 22215515112133 its reverse (33121151551222), we get a palindrome (55336666663355).

The spelling of 22215515112133 in words is "twenty-two trillion, two hundred fifteen billion, five hundred fifteen million, one hundred twelve thousand, one hundred thirty-three".