22003219991 has 2 divisors, whose sum is σ = 22003219992. Its totient is φ = 22003219990.

The previous prime is 22003219961. The next prime is 22003220053. The reversal of 22003219991 is 19991230022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22003219991 is a prime.

It is a super-3 number, since 3×22003219991³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22003219961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001609995 + 11001609996.

It is an arithmetic number, because the mean of its divisors is an integer number (11001609996).

Almost surely, 2^22003219991 is an apocalyptic number.

22003219991 is a deficient number, since it is larger than the sum of its proper divisors (1).

22003219991 is an equidigital number, since it uses as much as digits as its factorization.

22003219991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 22003219991 in words is "twenty-two billion, three million, two hundred nineteen thousand, nine hundred ninety-one".