1201213099 has 8 divisors (see below), whose sum is σ = 1213828560. Its totient is φ = 1188612000.

The previous prime is 1201213061. The next prime is 1201213109. The reversal of 1201213099 is 9903121021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201213099 - 2⁹ = 1201212587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201213009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274672 + ... + 279010.

It is an arithmetic number, because the mean of its divisors is an integer number (151728570).

Almost surely, 2^1201213099 is an apocalyptic number.

1201213099 is a deficient number, since it is larger than the sum of its proper divisors (12615461).

1201213099 is a wasteful number, since it uses less digits than its factorization.

1201213099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7181.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1201213099 is about 34658.5213042911. The cubic root of 1201213099 is about 1063.0165347097.

The spelling of 1201213099 in words is "one billion, two hundred one million, two hundred thirteen thousand, ninety-nine".