1011211111122 has 16 divisors (see below), whose sum is σ = 2087661649152. Its totient is φ = 326197132560.

The previous prime is 1011211111103. The next prime is 1011211111123. The reversal of 1011211111122 is 2211111121101.

It is a super-2 number, since 2×1011211111122² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011211111123) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2718309253 + ... + 2718309624.

It is an arithmetic number, because the mean of its divisors is an integer number (130478853072).

Almost surely, 2^{1011211111122} is an apocalyptic number.

1011211111122 is an abundant number, since it is smaller than the sum of its proper divisors (1076450538030).

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

1011211111122 is a wasteful number, since it uses less digits than its factorization.

1011211111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436618913.

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

Adding to 1011211111122 its reverse (2211111121101), we get a palindrome (3222322232223).

The spelling of 1011211111122 in words is "one trillion, eleven billion, two hundred eleven million, one hundred eleven thousand, one hundred twenty-two".