120221712 has 80 divisors (see below), whose sum is σ = 371642880. Its totient is φ = 36989568.

The previous prime is 120221711. The next prime is 120221719. The reversal of 120221712 is 217122021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (120221711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5088 + ... + 16319.

It is an arithmetic number, because the mean of its divisors is an integer number (4645536).

Almost surely, 2^120221712 is an apocalyptic number.

120221712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120221712 is an abundant number, since it is smaller than the sum of its proper divisors (251421168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120221712 is a wasteful number, since it uses less digits than its factorization.

120221712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21437 (or 21425 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 120221712 is about 10964.5662020893. The cubic root of 120221712 is about 493.5459995370.

Adding to 120221712 its reverse (217122021), we get a palindrome (337343733).

The spelling of 120221712 in words is "one hundred twenty million, two hundred twenty-one thousand, seven hundred twelve".