120214221 has 16 divisors (see below), whose sum is σ = 166713600. Its totient is φ = 76984128.

The previous prime is 120214219. The next prime is 120214231. The reversal of 120214221 is 122412021.

It is not a de Polignac number, because 120214221 - 2¹ = 120214219 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120214221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120214201) 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, 1915 + ... + 15623.

It is an arithmetic number, because the mean of its divisors is an integer number (10419600).

Almost surely, 2^120214221 is an apocalyptic number.

It is an amenable number.

120214221 is a deficient number, since it is larger than the sum of its proper divisors (46499379).

120214221 is a wasteful number, since it uses less digits than its factorization.

120214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13828.

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

The square root of 120214221 is about 10964.2245963862. The cubic root of 120214221 is about 493.5357483940.

Adding to 120214221 its reverse (122412021), we get a palindrome (242626242).

The spelling of 120214221 in words is "one hundred twenty million, two hundred fourteen thousand, two hundred twenty-one".