1111211211122 has 16 divisors (see below), whose sum is σ = 1712724469632. Its totient is φ = 540448102800.

The previous prime is 1111211211113. The next prime is 1111211211133. The reversal of 1111211211122 is 2211121121111.

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 1111211211122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36246629 + ... + 36277272.

It is an arithmetic number, because the mean of its divisors is an integer number (107045279352).

Almost surely, 2^{1111211211122} is an apocalyptic number.

1111211211122 is a deficient number, since it is larger than the sum of its proper divisors (601513258510).

1111211211122 is a wasteful number, since it uses less digits than its factorization.

1111211211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72524113.

The product of its digits is 16, while the sum is 17.

Adding to 1111211211122 its reverse (2211121121111), we get a palindrome (3322332332233).

The spelling of 1111211211122 in words is "one trillion, one hundred eleven billion, two hundred eleven million, two hundred eleven thousand, one hundred twenty-two".