22042252493 has 4 divisors (see below), whose sum is σ = 22753292928. Its totient is φ = 21331212060.

The previous prime is 22042252483. The next prime is 22042252501. The reversal of 22042252493 is 39425224022.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39425224022 = 2 ⋅19712612011.

It is a cyclic number.

It is not a de Polignac number, because 22042252493 - 2¹⁸ = 22041990349 is a prime.

It is a super-3 number, since 3×22042252493³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22042252483) 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, 355520171 + ... + 355520232.

It is an arithmetic number, because the mean of its divisors is an integer number (5688323232).

Almost surely, 2^22042252493 is an apocalyptic number.

It is an amenable number.

22042252493 is a deficient number, since it is larger than the sum of its proper divisors (711040435).

22042252493 is an equidigital number, since it uses as much as digits as its factorization.

22042252493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711040434.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 22042252493 in words is "twenty-two billion, forty-two million, two hundred fifty-two thousand, four hundred ninety-three".