1222120102111 has 4 divisors (see below), whose sum is σ = 1222130063824. Its totient is φ = 1222110140400.

The previous prime is 1222120102109. The next prime is 1222120102127. The reversal of 1222120102111 is 1112010212221.

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 1222120102111 - 2¹ = 1222120102109 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 (1222120105111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4794510 + ... + 5042971.

It is an arithmetic number, because the mean of its divisors is an integer number (305532515956).

Almost surely, 2^{1222120102111} is an apocalyptic number.

1222120102111 is a deficient number, since it is larger than the sum of its proper divisors (9961713).

1222120102111 is an equidigital number, since it uses as much as digits as its factorization.

1222120102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9961712.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1222120102111 its reverse (1112010212221), we get a palindrome (2334130314332).

It can be divided in two parts, 1222120 and 102111, that added together give a palindrome (1324231).

The spelling of 1222120102111 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred two thousand, one hundred eleven".