22212642338 has 8 divisors (see below), whose sum is σ = 33432680988. Its totient is φ = 11068415344.

The previous prime is 22212642313. The next prime is 22212642367. The reversal of 22212642338 is 83324621222.

It can be written as a sum of positive squares in 2 ways, for example, as 17552805169 + 4659837169 = 132487^2 + 68263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22212642298 and 22212642307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18952181 + ... + 18953352.

Almost surely, 2^22212642338 is an apocalyptic number.

22212642338 is a deficient number, since it is larger than the sum of its proper divisors (11220038650).

22212642338 is a wasteful number, since it uses less digits than its factorization.

22212642338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37905828.

The product of its digits is 55296, while the sum is 35.

The spelling of 22212642338 in words is "twenty-two billion, two hundred twelve million, six hundred forty-two thousand, three hundred thirty-eight".