1222220938 has 8 divisors (see below), whose sum is σ = 1833481188. Its totient is φ = 611060544.

The previous prime is 1222220917. The next prime is 1222220939. The reversal of 1222220938 is 8390222221.

It can be written as a sum of positive squares in 2 ways, for example, as 1117096929 + 105124009 = 33423^2 + 10253^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1222220939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28770 + ... + 57202.

Almost surely, 2^1222220938 is an apocalyptic number.

1222220938 is a deficient number, since it is larger than the sum of its proper divisors (611260250).

1222220938 is a wasteful number, since it uses less digits than its factorization.

1222220938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49928.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1222220938 is about 34960.2765721325. The cubic root of 1222220938 is about 1069.1777355269.

The spelling of 1222220938 in words is "one billion, two hundred twenty-two million, two hundred twenty thousand, nine hundred thirty-eight".