22221990243 has 6 divisors (see below), whose sum is σ = 32098430364. Its totient is φ = 14814660156.

The previous prime is 22221990233. The next prime is 22221990347. The reversal of 22221990243 is 34209912222.

It is a happy number.

22221990243 is a `hidden beast` number, since 2 + 222 + 199 + 0 + 243 = 666.

It is not a de Polignac number, because 22221990243 - 2⁹ = 22221989731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22221990198 and 22221990207.

It is not an unprimeable number, because it can be changed into a prime (22221990233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1234555005 + ... + 1234555022.

It is an arithmetic number, because the mean of its divisors is an integer number (5349738394).

Almost surely, 2^22221990243 is an apocalyptic number.

22221990243 is a deficient number, since it is larger than the sum of its proper divisors (9876440121).

22221990243 is a wasteful number, since it uses less digits than its factorization.

22221990243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469110033 (or 2469110030 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 22221990243 in words is "twenty-two billion, two hundred twenty-one million, nine hundred ninety thousand, two hundred forty-three".