22154524019 has 2 divisors, whose sum is σ = 22154524020. Its totient is φ = 22154524018.

The previous prime is 22154523977. The next prime is 22154524031. The reversal of 22154524019 is 91042545122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22154524019 - 2¹⁶ = 22154458483 is a prime.

It is a super-2 number, since 2×22154524019² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22154524019.

It is not a weakly prime, because it can be changed into another prime (22154524319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11077262009 + 11077262010.

It is an arithmetic number, because the mean of its divisors is an integer number (11077262010).

Almost surely, 2^22154524019 is an apocalyptic number.

22154524019 is a deficient number, since it is larger than the sum of its proper divisors (1).

22154524019 is an equidigital number, since it uses as much as digits as its factorization.

22154524019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 22154524019 in words is "twenty-two billion, one hundred fifty-four million, five hundred twenty-four thousand, nineteen".