1111221122122 has 8 divisors (see below), whose sum is σ = 1666924026372. Its totient is φ = 555579780000.

The previous prime is 1111221122029. The next prime is 1111221122147. The reversal of 1111221122122 is 2212211221111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1028640179961 + 82580942161 = 1014219^2 + 287369^2 .

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 1111221122122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15345379 + ... + 15417622.

Almost surely, 2^{1111221122122} is an apocalyptic number.

1111221122122 is a deficient number, since it is larger than the sum of its proper divisors (555702904250).

1111221122122 is a wasteful number, since it uses less digits than its factorization.

1111221122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30781064.

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

Adding to 1111221122122 its reverse (2212211221111), we get a palindrome (3323432343233).

The spelling of 1111221122122 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-two".