120561211 has 4 divisors (see below), whose sum is σ = 120613392. Its totient is φ = 120509032.

The previous prime is 120561143. The next prime is 120561241. The reversal of 120561211 is 112165021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112165021 = 1129 ⋅99349.

It is a cyclic number.

It is not a de Polignac number, because 120561211 - 2¹⁹ = 120036923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120561241) 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, 22456 + ... + 27301.

It is an arithmetic number, because the mean of its divisors is an integer number (30153348).

Almost surely, 2^120561211 is an apocalyptic number.

120561211 is a deficient number, since it is larger than the sum of its proper divisors (52181).

120561211 is an equidigital number, since it uses as much as digits as its factorization.

120561211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52180.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 120561211 is about 10980.0369307211. The cubic root of 120561211 is about 494.0101444698.

The spelling of 120561211 in words is "one hundred twenty million, five hundred sixty-one thousand, two hundred eleven".