120202155 has 24 divisors (see below), whose sum is σ = 220607712. Its totient is φ = 60336384.

The previous prime is 120202153. The next prime is 120202193. The reversal of 120202155 is 551202021.

It is not a de Polignac number, because 120202155 - 2¹ = 120202153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120202153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77799 + ... + 79328.

It is an arithmetic number, because the mean of its divisors is an integer number (9191988).

Almost surely, 2^120202155 is an apocalyptic number.

120202155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120202155 is a deficient number, since it is larger than the sum of its proper divisors (100405557).

120202155 is a wasteful number, since it uses less digits than its factorization.

120202155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157155 (or 157152 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 120202155 is about 10963.6743384688. The cubic root of 120202155 is about 493.5192356456.

Adding to 120202155 its reverse (551202021), we get a palindrome (671404176).

The spelling of 120202155 in words is "one hundred twenty million, two hundred two thousand, one hundred fifty-five".