222726620738 has 8 divisors (see below), whose sum is σ = 334116232140. Its totient is φ = 111354543360.

The previous prime is 222726620659. The next prime is 222726620747. The reversal of 222726620738 is 837026627222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 189858018529 + 32868602209 = 435727^2 + 181297^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222726620692 and 222726620701.

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, 4351703 + ... + 4402586.

Almost surely, 2^222726620738 is an apocalyptic number.

222726620738 is a deficient number, since it is larger than the sum of its proper divisors (111389611402).

222726620738 is a wasteful number, since it uses less digits than its factorization.

222726620738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8767012.

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 222726620738 in words is "two hundred twenty-two billion, seven hundred twenty-six million, six hundred twenty thousand, seven hundred thirty-eight".