1222020100111 has 16 divisors (see below), whose sum is σ = 1235226564000. Its totient is φ = 1208851776000.

The previous prime is 1222020100079. The next prime is 1222020100157. The reversal of 1222020100111 is 1110010202221.

It is a cyclic number.

It is not a de Polignac number, because 1222020100111 - 2⁵ = 1222020100079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222020100091 and 1222020100100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222020104111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208925115 + ... + 208930963.

It is an arithmetic number, because the mean of its divisors is an integer number (77201660250).

Almost surely, 2^{1222020100111} is an apocalyptic number.

1222020100111 is a deficient number, since it is larger than the sum of its proper divisors (13206463889).

1222020100111 is a wasteful number, since it uses less digits than its factorization.

1222020100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8730.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1222020100111 its reverse (1110010202221), we get a palindrome (2332030302332).

The spelling of 1222020100111 in words is "one trillion, two hundred twenty-two billion, twenty million, one hundred thousand, one hundred eleven".