120211220999 has 4 divisors (see below), whose sum is σ = 121378320336. Its totient is φ = 119044121664.

The previous prime is 120211220989. The next prime is 120211221059. The reversal of 120211220999 is 999022112021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120211220999 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 (120211220989) 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, 583549514 + ... + 583549719.

It is an arithmetic number, because the mean of its divisors is an integer number (30344580084).

Almost surely, 2^120211220999 is an apocalyptic number.

120211220999 is a deficient number, since it is larger than the sum of its proper divisors (1167099337).

120211220999 is a wasteful number, since it uses less digits than its factorization.

120211220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167099336.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 120211220999 in words is "one hundred twenty billion, two hundred eleven million, two hundred twenty thousand, nine hundred ninety-nine".