1207225999 has 4 divisors (see below), whose sum is σ = 1379686864. Its totient is φ = 1034765136.

The previous prime is 1207225991. The next prime is 1207226003. The reversal of 1207225999 is 9995227021.

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 1207225999 - 2³ = 1207225991 is a prime.

It is a super-2 number, since 2×1207225999² = 2914789225323096002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1207225991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86230422 + ... + 86230435.

It is an arithmetic number, because the mean of its divisors is an integer number (344921716).

Almost surely, 2^1207225999 is an apocalyptic number.

1207225999 is a deficient number, since it is larger than the sum of its proper divisors (172460865).

1207225999 is an equidigital number, since it uses as much as digits as its factorization.

1207225999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172460864.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 1207225999 is about 34745.1579216443. The cubic root of 1207225999 is about 1064.7872936602.

The spelling of 1207225999 in words is "one billion, two hundred seven million, two hundred twenty-five thousand, nine hundred ninety-nine".