22872220451 has 4 divisors (see below), whose sum is σ = 22872940272. Its totient is φ = 22871500632.

The previous prime is 22872220433. The next prime is 22872220489. The reversal of 22872220451 is 15402227822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15402227822 = 2 ⋅7701113911.

It is a cyclic number.

It is not a de Polignac number, because 22872220451 - 2¹⁰ = 22872219427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22872225451) 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, 309935 + ... + 376568.

It is an arithmetic number, because the mean of its divisors is an integer number (5718235068).

Almost surely, 2^22872220451 is an apocalyptic number.

22872220451 is a deficient number, since it is larger than the sum of its proper divisors (719821).

22872220451 is an equidigital number, since it uses as much as digits as its factorization.

22872220451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719820.

The product of its (nonzero) digits is 35840, while the sum is 35.

The spelling of 22872220451 in words is "twenty-two billion, eight hundred seventy-two million, two hundred twenty thousand, four hundred fifty-one".