120200221 has 4 divisors (see below), whose sum is σ = 120319200. Its totient is φ = 120081244.

The previous prime is 120200219. The next prime is 120200239. The reversal of 120200221 is 122002021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122002021 = 19 ⋅6421159.

It is a cyclic number.

It is not a de Polignac number, because 120200221 - 2¹ = 120200219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120200198 and 120200207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120200261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57961 + ... + 59998.

It is an arithmetic number, because the mean of its divisors is an integer number (30079800).

Almost surely, 2^120200221 is an apocalyptic number.

It is an amenable number.

120200221 is a deficient number, since it is larger than the sum of its proper divisors (118979).

120200221 is a wasteful number, since it uses less digits than its factorization.

120200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118978.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 120200221 is about 10963.5861377562. The cubic root of 120200221 is about 493.5165887953.

Adding to 120200221 its reverse (122002021), we get a palindrome (242202242).

The spelling of 120200221 in words is "one hundred twenty million, two hundred thousand, two hundred twenty-one".