120226155 has 24 divisors (see below), whose sum is σ = 223769232. Its totient is φ = 54960192.

The previous prime is 120226133. The next prime is 120226231. The reversal of 120226155 is 551622021.

It is a happy number.

It is not a de Polignac number, because 120226155 - 2⁵ = 120226123 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81052 + ... + 82521.

It is an arithmetic number, because the mean of its divisors is an integer number (9323718).

Almost surely, 2^120226155 is an apocalyptic number.

120226155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120226155 is a deficient number, since it is larger than the sum of its proper divisors (103543077).

120226155 is a wasteful number, since it uses less digits than its factorization.

120226155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163595 (or 163588 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 120226155 is about 10964.7688074122. The cubic root of 120226155 is about 493.5520794090.

Adding to 120226155 its reverse (551622021), we get a palindrome (671848176).

The spelling of 120226155 in words is "one hundred twenty million, two hundred twenty-six thousand, one hundred fifty-five".