120202191 has 16 divisors (see below), whose sum is σ = 179262720. Its totient is φ = 79601400.

The previous prime is 120202153. The next prime is 120202193. The reversal of 120202191 is 191202021.

It is not a de Polignac number, because 120202191 - 2⁶ = 120202127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10665 + ... + 18818.

It is an arithmetic number, because the mean of its divisors is an integer number (11203920).

Almost surely, 2^120202191 is an apocalyptic number.

120202191 is a deficient number, since it is larger than the sum of its proper divisors (59060529).

120202191 is a wasteful number, since it uses less digits than its factorization.

120202191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29643 (or 29637 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 120202191 is about 10963.6759802541. The cubic root of 120202191 is about 493.5192849145.

The spelling of 120202191 in words is "one hundred twenty million, two hundred two thousand, one hundred ninety-one".