120001112221 has 8 divisors (see below), whose sum is σ = 120271911480. Its totient is φ = 119730619392.

The previous prime is 120001112207. The next prime is 120001112243. The reversal of 120001112221 is 122211100021.

It can be written as a sum of positive squares in 4 ways, for example, as 14717086596 + 105284025625 = 121314^2 + 324475^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 120001112221 - 2³¹ = 117853628573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001112261) 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, 716721 + ... + 868153.

It is an arithmetic number, because the mean of its divisors is an integer number (15033988935).

Almost surely, 2^120001112221 is an apocalyptic number.

It is an amenable number.

120001112221 is a deficient number, since it is larger than the sum of its proper divisors (270799259).

120001112221 is an equidigital number, since it uses as much as digits as its factorization.

120001112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153215.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120001112221 its reverse (122211100021), we get a palindrome (242212212242).

The spelling of 120001112221 in words is "one hundred twenty billion, one million, one hundred twelve thousand, two hundred twenty-one".