1222661474 has 4 divisors (see below), whose sum is σ = 1833992214. Its totient is φ = 611330736.

The previous prime is 1222661467. The next prime is 1222661507. The reversal of 1222661474 is 4741662221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 709956025 + 512705449 = 26645^2 + 22643^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305665367 + ... + 305665370.

Almost surely, 2^1222661474 is an apocalyptic number.

1222661474 is a deficient number, since it is larger than the sum of its proper divisors (611330740).

1222661474 is an equidigital number, since it uses as much as digits as its factorization.

1222661474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611330739.

The product of its digits is 32256, while the sum is 35.

The square root of 1222661474 is about 34966.5765267348. The cubic root of 1222661474 is about 1069.3061778539.

The spelling of 1222661474 in words is "one billion, two hundred twenty-two million, six hundred sixty-one thousand, four hundred seventy-four".