22200398242 has 16 divisors (see below), whose sum is σ = 36405731232. Its totient is φ = 10069477120.

The previous prime is 22200398239. The next prime is 22200398257. The reversal of 22200398242 is 24289300222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22200398198 and 22200398207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070143 + ... + 1090690.

It is an arithmetic number, because the mean of its divisors is an integer number (2275358202).

Almost surely, 2^22200398242 is an apocalyptic number.

22200398242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22200398242 is a deficient number, since it is larger than the sum of its proper divisors (14205332990).

22200398242 is a wasteful number, since it uses less digits than its factorization.

22200398242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161313.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 22200398242 its reverse (24289300222), we get a palindrome (46489698464).

The spelling of 22200398242 in words is "twenty-two billion, two hundred million, three hundred ninety-eight thousand, two hundred forty-two".