22153421287 has 2 divisors, whose sum is σ = 22153421288. Its totient is φ = 22153421286.

The previous prime is 22153421243. The next prime is 22153421351. The reversal of 22153421287 is 78212435122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22153421287 - 2¹⁹ = 22152896999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22153427287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11076710643 + 11076710644.

It is an arithmetic number, because the mean of its divisors is an integer number (11076710644).

Almost surely, 2^22153421287 is an apocalyptic number.

22153421287 is a deficient number, since it is larger than the sum of its proper divisors (1).

22153421287 is an equidigital number, since it uses as much as digits as its factorization.

22153421287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 37.

The spelling of 22153421287 in words is "twenty-two billion, one hundred fifty-three million, four hundred twenty-one thousand, two hundred eighty-seven".