1222112112122 has 32 divisors (see below), whose sum is σ = 2020024894464. Its totient is φ = 549895192000.

The previous prime is 1222112112119. The next prime is 1222112112127. The reversal of 1222112112122 is 2212112112221.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1222112112094 and 1222112112103.

It is not an unprimeable number, because it can be changed into a prime (1222112112127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11584103 + ... + 11689125.

It is an arithmetic number, because the mean of its divisors is an integer number (63125777952).

Almost surely, 2^{1222112112122} is an apocalyptic number.

1222112112122 is a deficient number, since it is larger than the sum of its proper divisors (797912782342).

1222112112122 is a wasteful number, since it uses less digits than its factorization.

1222112112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110374.

The product of its digits is 128, while the sum is 20.

Adding to 1222112112122 its reverse (2212112112221), we get a palindrome (3434224224343).

Subtracting 1222112112122 from its reverse (2212112112221), we obtain a palindrome (990000000099).

The spelling of 1222112112122 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, one hundred twelve thousand, one hundred twenty-two".