120000020221 has 4 divisors (see below), whose sum is σ = 120002544000. Its totient is φ = 119997496444.

The previous prime is 120000020213. The next prime is 120000020227. The reversal of 120000020221 is 122020000021.

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 120000020221 - 2³ = 120000020213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120000020198 and 120000020207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000020227) 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, 1189171 + ... + 1286128.

It is an arithmetic number, because the mean of its divisors is an integer number (30000636000).

Almost surely, 2^120000020221 is an apocalyptic number.

It is an amenable number.

120000020221 is a deficient number, since it is larger than the sum of its proper divisors (2523779).

120000020221 is an equidigital number, since it uses as much as digits as its factorization.

120000020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523778.

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

Adding to 120000020221 its reverse (122020000021), we get a palindrome (242020020242).

It can be divided in two parts, 1200000 and 20221, that added together give a palindrome (1220221).

The spelling of 120000020221 in words is "one hundred twenty billion, twenty thousand, two hundred twenty-one".