1211201199 has 36 divisors (see below), whose sum is σ = 1905807384. Its totient is φ = 740885184.

The previous prime is 1211201107. The next prime is 1211201207. The reversal of 1211201199 is 9911021121.

1211201199 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1211201199 - 2⁹ = 1211200687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211201399) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 260832 + ... + 265434.

It is an arithmetic number, because the mean of its divisors is an integer number (52939094).

Almost surely, 2^1211201199 is an apocalyptic number.

1211201199 is a deficient number, since it is larger than the sum of its proper divisors (694606185).

1211201199 is a wasteful number, since it uses less digits than its factorization.

1211201199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808 (or 4792 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The square root of 1211201199 is about 34802.3160005193. The cubic root of 1211201199 is about 1065.9547373207.

The spelling of 1211201199 in words is "one billion, two hundred eleven million, two hundred one thousand, one hundred ninety-nine".