1222749007 has 4 divisors (see below), whose sum is σ = 1239970896. Its totient is φ = 1205527120.

The previous prime is 1222748963. The next prime is 1222749013. The reversal of 1222749007 is 7009472221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1222749007 - 2¹⁵ = 1222716239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222749097) 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, 8610838 + ... + 8610979.

It is an arithmetic number, because the mean of its divisors is an integer number (309992724).

Almost surely, 2^1222749007 is an apocalyptic number.

1222749007 is a deficient number, since it is larger than the sum of its proper divisors (17221889).

1222749007 is an equidigital number, since it uses as much as digits as its factorization.

1222749007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17221888.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 1222749007 is about 34967.8281710489. The cubic root of 1222749007 is about 1069.3316952316.

The spelling of 1222749007 in words is "one billion, two hundred twenty-two million, seven hundred forty-nine thousand, seven".