122201120021111 has 4 divisors (see below), whose sum is σ = 122201143219272. Its totient is φ = 122201096822952.

The previous prime is 122201120021089. The next prime is 122201120021173. The reversal of 122201120021111 is 111120021102221.

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 122201120021111 - 2⁶ = 122201120021047 is a prime.

It is a super-2 number, since 2×122201120021111² (a number of 29 digits) contains 22 as substring.

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 122201120021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122201120071111) 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, 530816 + ... + 15642378.

It is an arithmetic number, because the mean of its divisors is an integer number (30550285804818).

Almost surely, 2^{122201120021111} is an apocalyptic number.

122201120021111 is a deficient number, since it is larger than the sum of its proper divisors (23198161).

122201120021111 is an equidigital number, since it uses as much as digits as its factorization.

122201120021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23198160.

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

Adding to 122201120021111 its reverse (111120021102221), we get a palindrome (233321141123332).

The spelling of 122201120021111 in words is "one hundred twenty-two trillion, two hundred one billion, one hundred twenty million, twenty-one thousand, one hundred eleven".