120021122210111 has 4 divisors (see below), whose sum is σ = 120023172404832. Its totient is φ = 120019072015392.

The previous prime is 120021122209999. The next prime is 120021122210131. The reversal of 120021122210111 is 111012221120021.

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

It is a cyclic number.

It is not a de Polignac number, because 120021122210111 - 2²⁶ = 120021055101247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120021122210111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021122210131) 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, 1025009546 + ... + 1025126631.

It is an arithmetic number, because the mean of its divisors is an integer number (30005793101208).

Almost surely, 2^{120021122210111} is an apocalyptic number.

120021122210111 is a deficient number, since it is larger than the sum of its proper divisors (2050194721).

120021122210111 is an equidigital number, since it uses as much as digits as its factorization.

120021122210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050194720.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 120021122210111 its reverse (111012221120021), we get a palindrome (231033343330132).

The spelling of 120021122210111 in words is "one hundred twenty trillion, twenty-one billion, one hundred twenty-two million, two hundred ten thousand, one hundred eleven".