120221146 has 4 divisors (see below), whose sum is σ = 180331722. Its totient is φ = 60110572.

The previous prime is 120221137. The next prime is 120221147. The reversal of 120221146 is 641122021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641122021 = 251 ⋅2554271.

It can be written as a sum of positive squares in only one way, i.e., 111070521 + 9150625 = 10539^2 + 3025^2 .

It is not an unprimeable number, because it can be changed into a prime (120221147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30055285 + ... + 30055288.

Almost surely, 2^120221146 is an apocalyptic number.

120221146 is a deficient number, since it is larger than the sum of its proper divisors (60110576).

120221146 is an equidigital number, since it uses as much as digits as its factorization.

120221146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60110575.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 120221146 is about 10964.5403916443. The cubic root of 120221146 is about 493.5452250028.

Adding to 120221146 its reverse (641122021), we get a palindrome (761343167).

The spelling of 120221146 in words is "one hundred twenty million, two hundred twenty-one thousand, one hundred forty-six".