1220112122226 has 16 divisors (see below), whose sum is σ = 2440681879104. Its totient is φ = 406627768304.

The previous prime is 1220112122183. The next prime is 1220112122227. The reversal of 1220112122226 is 6222212110221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220112122196 and 1220112122205.

It is not an unprimeable number, because it can be changed into a prime (1220112122227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19033446 + ... + 19097441.

It is an arithmetic number, because the mean of its divisors is an integer number (152542617444).

Almost surely, 2^{1220112122226} is an apocalyptic number.

1220112122226 is an abundant number, since it is smaller than the sum of its proper divisors (1220569756878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220112122226 is a wasteful number, since it uses less digits than its factorization.

1220112122226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38136225.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1220112122226 its reverse (6222212110221), we get a palindrome (7442324232447).

The spelling of 1220112122226 in words is "one trillion, two hundred twenty billion, one hundred twelve million, one hundred twenty-two thousand, two hundred twenty-six".