28226232001 has 4 divisors (see below), whose sum is σ = 30792253104. Its totient is φ = 25660210900.

The previous prime is 28226231989. The next prime is 28226232007. The reversal of 28226232001 is 10023262282.

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 28226232001 - 2³³ = 19636297409 is a prime.

It is a super-3 number, since 3×28226232001³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28226232007) 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, 1283010535 + ... + 1283010556.

It is an arithmetic number, because the mean of its divisors is an integer number (7698063276).

Almost surely, 2^28226232001 is an apocalyptic number.

It is an amenable number.

28226232001 is a deficient number, since it is larger than the sum of its proper divisors (2566021103).

28226232001 is a wasteful number, since it uses less digits than its factorization.

28226232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566021102.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 28226232001 its reverse (10023262282), we get a palindrome (38249494283).

The spelling of 28226232001 in words is "twenty-eight billion, two hundred twenty-six million, two hundred thirty-two thousand, one".