1200225599 has 4 divisors (see below), whose sum is σ = 1203443736. Its totient is φ = 1197007464.

The previous prime is 1200225557. The next prime is 1200225617. The reversal of 1200225599 is 9955220021.

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 1200225599 - 2⁸ = 1200225343 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 (1200222599) 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, 1608509 + ... + 1609254.

It is an arithmetic number, because the mean of its divisors is an integer number (300860934).

Almost surely, 2^1200225599 is an apocalyptic number.

1200225599 is a deficient number, since it is larger than the sum of its proper divisors (3218137).

1200225599 is an equidigital number, since it uses as much as digits as its factorization.

1200225599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3218136.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 1200225599 is about 34644.2722394338. The cubic root of 1200225599 is about 1062.7251579851.

The spelling of 1200225599 in words is "one billion, two hundred million, two hundred twenty-five thousand, five hundred ninety-nine".