120011221221 has 8 divisors (see below), whose sum is σ = 160212270624. Its totient is φ = 79908826320.

The previous prime is 120011221193. The next prime is 120011221223. The reversal of 120011221221 is 122122110021.

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

It is not a de Polignac number, because 120011221221 - 2⁶ = 120011221157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120011221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011221223) 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, 24660786 + ... + 24665651.

It is an arithmetic number, because the mean of its divisors is an integer number (20026533828).

Almost surely, 2^120011221221 is an apocalyptic number.

It is an amenable number.

120011221221 is a deficient number, since it is larger than the sum of its proper divisors (40201049403).

120011221221 is an equidigital number, since it uses as much as digits as its factorization.

120011221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49327251.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120011221221 its reverse (122122110021), we get a palindrome (242133331242).

The spelling of 120011221221 in words is "one hundred twenty billion, eleven million, two hundred twenty-one thousand, two hundred twenty-one".