1122211112122 has 8 divisors (see below), whose sum is σ = 1683438857172. Its totient is φ = 561064826400.

The previous prime is 1122211112119. The next prime is 1122211112123. The reversal of 1122211112122 is 2212111122211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1008716913801 + 113494198321 = 1004349^2 + 336889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1122211112122.

It is not an unprimeable number, because it can be changed into a prime (1122211112123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20330379 + ... + 20385502.

Almost surely, 2^{1122211112122} is an apocalyptic number.

1122211112122 is a deficient number, since it is larger than the sum of its proper divisors (561227745050).

1122211112122 is a wasteful number, since it uses less digits than its factorization.

1122211112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40729664.

The product of its digits is 64, while the sum is 19.

Adding to 1122211112122 its reverse (2212111122211), we get a palindrome (3334322234333).

The spelling of 1122211112122 in words is "one trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twelve thousand, one hundred twenty-two".