120224121 has 4 divisors (see below), whose sum is σ = 160298832. Its totient is φ = 80149412.

The previous prime is 120224099. The next prime is 120224131. The reversal of 120224121 is 121422021.

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 not a de Polignac number, because 120224121 - 2⁷ = 120223993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120224121.

It is not an unprimeable number, because it can be changed into a prime (120224131) 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, 20037351 + ... + 20037356.

It is an arithmetic number, because the mean of its divisors is an integer number (40074708).

Almost surely, 2^120224121 is an apocalyptic number.

It is an amenable number.

120224121 is a deficient number, since it is larger than the sum of its proper divisors (40074711).

120224121 is an equidigital number, since it uses as much as digits as its factorization.

120224121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40074710.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 120224121 is about 10964.6760554063. The cubic root of 120224121 is about 493.5492960696.

Adding to 120224121 its reverse (121422021), we get a palindrome (241646142).

The spelling of 120224121 in words is "one hundred twenty million, two hundred twenty-four thousand, one hundred twenty-one".