120191229 has 8 divisors (see below), whose sum is σ = 178061120. Its totient is φ = 80127468.

The previous prime is 120191209. The next prime is 120191243. The reversal of 120191229 is 922191021.

It is a de Polignac number, because none of the positive numbers 2^k-120191229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4451527 = 120191229 / (1 + 2 + 0 + 1 + 9 + 1 + 2 + 2 + 9).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120191209) 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, 2225737 + ... + 2225790.

It is an arithmetic number, because the mean of its divisors is an integer number (22257640).

Almost surely, 2^120191229 is an apocalyptic number.

It is an amenable number.

120191229 is a deficient number, since it is larger than the sum of its proper divisors (57869891).

120191229 is an equidigital number, since it uses as much as digits as its factorization.

120191229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451536 (or 4451530 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 120191229 is about 10963.1760452891. The cubic root of 120191229 is about 493.5042820741.

The spelling of 120191229 in words is "one hundred twenty million, one hundred ninety-one thousand, two hundred twenty-nine".