22631281251 has 16 divisors (see below), whose sum is σ = 30561922080. Its totient is φ = 14894612480.

The previous prime is 22631281219. The next prime is 22631281303. The reversal of 22631281251 is 15218213622.

It is a cyclic number.

It is not a de Polignac number, because 22631281251 - 2⁵ = 22631281219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22631281201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105031 + ... + 237263.

It is an arithmetic number, because the mean of its divisors is an integer number (1910120130).

Almost surely, 2^22631281251 is an apocalyptic number.

22631281251 is a deficient number, since it is larger than the sum of its proper divisors (7930640829).

22631281251 is a wasteful number, since it uses less digits than its factorization.

22631281251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132966.

The product of its digits is 11520, while the sum is 33.

Adding to 22631281251 its reverse (15218213622), we get a palindrome (37849494873).

The spelling of 22631281251 in words is "twenty-two billion, six hundred thirty-one million, two hundred eighty-one thousand, two hundred fifty-one".