1222020110111 has 16 divisors (see below), whose sum is σ = 1241410959360. Its totient is φ = 1202791591200.

The previous prime is 1222020110033. The next prime is 1222020110149. The reversal of 1222020110111 is 1110110202221.

It is a cyclic number.

It is not a de Polignac number, because 1222020110111 - 2¹⁰ = 1222020109087 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 (1222020110161) 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 15 ways as a sum of consecutive naturals, for example, 12675656 + ... + 12771698.

It is an arithmetic number, because the mean of its divisors is an integer number (77588184960).

Almost surely, 2^{1222020110111} is an apocalyptic number.

1222020110111 is a deficient number, since it is larger than the sum of its proper divisors (19390849249).

1222020110111 is a wasteful number, since it uses less digits than its factorization.

1222020110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96886.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1222020110111 its reverse (1110110202221), we get a palindrome (2332130312332).

The spelling of 1222020110111 in words is "one trillion, two hundred twenty-two billion, twenty million, one hundred ten thousand, one hundred eleven".