120021220221 has 8 divisors (see below), whose sum is σ = 182889478464. Its totient is φ = 68583554400.

The previous prime is 120021220211. The next prime is 120021220283. The reversal of 120021220221 is 122022120021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120021220221 - 2¹¹ = 120021218173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120021220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021220211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2857648080 + ... + 2857648121.

It is an arithmetic number, because the mean of its divisors is an integer number (22861184808).

Almost surely, 2^120021220221 is an apocalyptic number.

It is an amenable number.

120021220221 is a deficient number, since it is larger than the sum of its proper divisors (62868258243).

120021220221 is an equidigital number, since it uses as much as digits as its factorization.

120021220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715296211.

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

Adding to 120021220221 its reverse (122022120021), we get a palindrome (242043340242).

The spelling of 120021220221 in words is "one hundred twenty billion, twenty-one million, two hundred twenty thousand, two hundred twenty-one".