22287381426281 has 4 divisors (see below), whose sum is σ = 22287630350592. Its totient is φ = 22287132501972.

The previous prime is 22287381426241. The next prime is 22287381426307. The reversal of 22287381426281 is 18262418378222.

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 22287381426281 - 2¹⁸ = 22287381164137 is a prime.

It is a super-2 number, since 2×22287381426281² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22287381426241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124327805 + ... + 124506938.

It is an arithmetic number, because the mean of its divisors is an integer number (5571907587648).

Almost surely, 2^{22287381426281} is an apocalyptic number.

It is an amenable number.

22287381426281 is a deficient number, since it is larger than the sum of its proper divisors (248924311).

22287381426281 is an equidigital number, since it uses as much as digits as its factorization.

22287381426281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248924310.

The product of its digits is 8257536, while the sum is 56.

The spelling of 22287381426281 in words is "twenty-two trillion, two hundred eighty-seven billion, three hundred eighty-one million, four hundred twenty-six thousand, two hundred eighty-one".