120552221 has 4 divisors (see below), whose sum is σ = 120591744. Its totient is φ = 120512700.

The previous prime is 120552203. The next prime is 120552251. The reversal of 120552221 is 122255021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120552221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120552193 and 120552202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120552251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14765 + ... + 21426.

It is an arithmetic number, because the mean of its divisors is an integer number (30147936).

Almost surely, 2^120552221 is an apocalyptic number.

It is an amenable number.

120552221 is a deficient number, since it is larger than the sum of its proper divisors (39523).

120552221 is an equidigital number, since it uses as much as digits as its factorization.

120552221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39522.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 120552221 is about 10979.6275437740. The cubic root of 120552221 is about 493.9978650599.

The spelling of 120552221 in words is "one hundred twenty million, five hundred fifty-two thousand, two hundred twenty-one".