22231033331251 has 2 divisors, whose sum is σ = 22231033331252. Its totient is φ = 22231033331250.

The previous prime is 22231033331239. The next prime is 22231033331327. The reversal of 22231033331251 is 15213333013222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22231033331251 - 2⁹ = 22231033330739 is a prime.

It is not a weakly prime, because it can be changed into another prime (22231033331651) 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 as a sum of consecutive naturals, namely, 11115516665625 + 11115516665626.

It is an arithmetic number, because the mean of its divisors is an integer number (11115516665626).

Almost surely, 2^{22231033331251} is an apocalyptic number.

22231033331251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22231033331251 is an equidigital number, since it uses as much as digits as its factorization.

22231033331251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 22231033331251 its reverse (15213333013222), we get a palindrome (37444366344473).

The spelling of 22231033331251 in words is "twenty-two trillion, two hundred thirty-one billion, thirty-three million, three hundred thirty-one thousand, two hundred fifty-one".