22158013666213 has 4 divisors (see below), whose sum is σ = 23121405564768. Its totient is φ = 21194621767660.

The previous prime is 22158013666211. The next prime is 22158013666219. The reversal of 22158013666213 is 31266631085122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22158013666213 - 2¹ = 22158013666211 is a prime.

It is a super-2 number, since 2×22158013666213² (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 (22158013666211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481695949243 + ... + 481695949288.

It is an arithmetic number, because the mean of its divisors is an integer number (5780351391192).

Almost surely, 2^{22158013666213} is an apocalyptic number.

22158013666213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22158013666213 is a deficient number, since it is larger than the sum of its proper divisors (963391898555).

22158013666213 is an equidigital number, since it uses as much as digits as its factorization.

22158013666213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963391898554.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 22158013666213 in words is "twenty-two trillion, one hundred fifty-eight billion, thirteen million, six hundred sixty-six thousand, two hundred thirteen".