120122551 has 8 divisors (see below), whose sum is σ = 124291584. Its totient is φ = 115971960.

The previous prime is 120122543. The next prime is 120122567. The reversal of 120122551 is 155221021.

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 120122551 - 2³ = 120122543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120122501) 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, 9360 + ... + 18106.

It is an arithmetic number, because the mean of its divisors is an integer number (15536448).

Almost surely, 2^120122551 is an apocalyptic number.

120122551 is a deficient number, since it is larger than the sum of its proper divisors (4169033).

120122551 is an equidigital number, since it uses as much as digits as its factorization.

120122551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 120122551 is about 10960.0433849506. The cubic root of 120122551 is about 493.4102670478.

Adding to 120122551 its reverse (155221021), we get a palindrome (275343572).

The spelling of 120122551 in words is "one hundred twenty million, one hundred twenty-two thousand, five hundred fifty-one".