1222220121110 has 16 divisors (see below), whose sum is σ = 2200147672032. Its totient is φ = 488854392000.

The previous prime is 1222220121091. The next prime is 1222220121167. The reversal of 1222220121110 is 111210222221.

It is a super-2 number, since 2×1222220121110² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4054271 + ... + 4345290.

It is an arithmetic number, because the mean of its divisors is an integer number (137509229502).

Almost surely, 2^{1222220121110} is an apocalyptic number.

1222220121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222220121110 is a deficient number, since it is larger than the sum of its proper divisors (977927550922).

1222220121110 is a wasteful number, since it uses less digits than its factorization.

1222220121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8414119.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222220121110 its reverse (111210222221), we get a palindrome (1333430343331).

The spelling of 1222220121110 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twenty-one thousand, one hundred ten".