22203913493 has 2 divisors, whose sum is σ = 22203913494. Its totient is φ = 22203913492.

The previous prime is 22203913451. The next prime is 22203913517. The reversal of 22203913493 is 39431930222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12183302884 + 10020610609 = 110378^2 + 100103^2 .

It is a cyclic number.

It is not a de Polignac number, because 22203913493 - 2⁶ = 22203913429 is a prime.

It is a super-2 number, since 2×22203913493² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22203913393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101956746 + 11101956747.

It is an arithmetic number, because the mean of its divisors is an integer number (11101956747).

Almost surely, 2^22203913493 is an apocalyptic number.

It is an amenable number.

22203913493 is a deficient number, since it is larger than the sum of its proper divisors (1).

22203913493 is an equidigital number, since it uses as much as digits as its factorization.

22203913493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 38.

It can be divided in two parts, 222039 and 13493, that added together give a palindrome (235532).

The spelling of 22203913493 in words is "twenty-two billion, two hundred three million, nine hundred thirteen thousand, four hundred ninety-three".