1011122111122 has 4 divisors (see below), whose sum is σ = 1516683166686. Its totient is φ = 505561055560.

The previous prime is 1011122111059. The next prime is 1011122111141. The reversal of 1011122111122 is 2211112211101.

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., 1008901722481 + 2220388641 = 1004441^2 + 47121^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1011122111096 and 1011122111105.

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, 252780527779 + ... + 252780527782.

Almost surely, 2^{1011122111122} is an apocalyptic number.

1011122111122 is a deficient number, since it is larger than the sum of its proper divisors (505561055564).

1011122111122 is an equidigital number, since it uses as much as digits as its factorization.

1011122111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505561055563.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1011122111122 its reverse (2211112211101), we get a palindrome (3222234322223).

The spelling of 1011122111122 in words is "one trillion, eleven billion, one hundred twenty-two million, one hundred eleven thousand, one hundred twenty-two".