112211212122122 has 4 divisors (see below), whose sum is σ = 168316818183186. Its totient is φ = 56105606061060.

The previous prime is 112211212122071. The next prime is 112211212122137. The reversal of 112211212122122 is 221221212112211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 106682642755441 + 5528569366681 = 10328729^2 + 2351291^2 .

It is a super-2 number, since 2×112211212122122² (a number of 29 digits) contains 22 as substring.

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

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 as a sum of consecutive naturals, namely, 28052803030529 + ... + 28052803030532.

Almost surely, 2^{112211212122122} is an apocalyptic number.

112211212122122 is a deficient number, since it is larger than the sum of its proper divisors (56105606061064).

112211212122122 is an equidigital number, since it uses as much as digits as its factorization.

112211212122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56105606061063.

The product of its digits is 256, while the sum is 23.

Adding to 112211212122122 its reverse (221221212112211), we get a palindrome (333432424234333).

The spelling of 112211212122122 in words is "one hundred twelve trillion, two hundred eleven billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twenty-two".