1201233199 has 4 divisors (see below), whose sum is σ = 1203530536. Its totient is φ = 1198935864.

The previous prime is 1201233193. The next prime is 1201233217. The reversal of 1201233199 is 9913321021.

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 1201233199 - 2¹⁹ = 1200708911 is a prime.

It is a super-2 number, since 2×1201233199² = 2885922396759547202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201233199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201233193) 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, 1147884 + ... + 1148929.

It is an arithmetic number, because the mean of its divisors is an integer number (300882634).

Almost surely, 2^1201233199 is an apocalyptic number.

1201233199 is a deficient number, since it is larger than the sum of its proper divisors (2297337).

1201233199 is an equidigital number, since it uses as much as digits as its factorization.

1201233199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297336.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1201233199 is about 34658.8112750567. The cubic root of 1201233199 is about 1063.0224638584.

The spelling of 1201233199 in words is "one billion, two hundred one million, two hundred thirty-three thousand, one hundred ninety-nine".