22154035020409 has 2 divisors, whose sum is σ = 22154035020410. Its totient is φ = 22154035020408.

The previous prime is 22154035020347. The next prime is 22154035020427. The reversal of 22154035020409 is 90402053045122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19141745016384 + 3012290004025 = 4375128^2 + 1735595^2 .

It is a cyclic number.

It is not a de Polignac number, because 22154035020409 - 2³⁵ = 22119675282041 is a prime.

It is not a weakly prime, because it can be changed into another prime (22154035020449) 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, 11077017510204 + 11077017510205.

It is an arithmetic number, because the mean of its divisors is an integer number (11077017510205).

Almost surely, 2^{22154035020409} is an apocalyptic number.

It is an amenable number.

22154035020409 is a deficient number, since it is larger than the sum of its proper divisors (1).

22154035020409 is an equidigital number, since it uses as much as digits as its factorization.

22154035020409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 22154035020409 in words is "twenty-two trillion, one hundred fifty-four billion, thirty-five million, twenty thousand, four hundred nine".