1200100994 has 12 divisors (see below), whose sum is σ = 1850123394. Its totient is φ = 583831584.

The previous prime is 1200100973. The next prime is 1200100999. The reversal of 1200100994 is 4990010021.

It can be written as a sum of positive squares in 3 ways, for example, as 1109755969 + 90345025 = 33313^2 + 9505^2 .

It is not an unprimeable number, because it can be changed into a prime (1200100999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216419 + ... + 221894.

Almost surely, 2^1200100994 is an apocalyptic number.

1200100994 is a deficient number, since it is larger than the sum of its proper divisors (650022400).

1200100994 is an equidigital number, since it uses as much as digits as its factorization.

1200100994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438389 (or 438352 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1200100994 is about 34642.4738435349. The cubic root of 1200100994 is about 1062.6883800517.

The spelling of 1200100994 in words is "one billion, two hundred million, one hundred thousand, nine hundred ninety-four".