1011111211122 has 32 divisors (see below), whose sum is σ = 2141222428800. Its totient is φ = 317204583168.

The previous prime is 1011111211081. The next prime is 1011111211133. The reversal of 1011111211122 is 2211121111101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7051579 + ... + 7193537.

It is an arithmetic number, because the mean of its divisors is an integer number (66913200900).

Almost surely, 2^{1011111211122} is an apocalyptic number.

1011111211122 is an abundant number, since it is smaller than the sum of its proper divisors (1130111217678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011111211122 is a wasteful number, since it uses less digits than its factorization.

1011111211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211810.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1011111211122 its reverse (2211121111101), we get a palindrome (3222232322223).

The spelling of 1011111211122 in words is "one trillion, eleven billion, one hundred eleven million, two hundred eleven thousand, one hundred twenty-two".