1011211122 has 16 divisors (see below), whose sum is σ = 2128865760. Its totient is φ = 319329792.

The previous prime is 1011211079. The next prime is 1011211127. The reversal of 1011211122 is 2211121101.

It is a junction number, because it is equal to n+sod(n) for n = 1011211098 and 1011211107.

It is not an unprimeable number, because it can be changed into a prime (1011211127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4435023 + ... + 4435250.

It is an arithmetic number, because the mean of its divisors is an integer number (133054110).

Almost surely, 2^1011211122 is an apocalyptic number.

1011211122 is an abundant number, since it is smaller than the sum of its proper divisors (1117654638).

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

1011211122 is a wasteful number, since it uses less digits than its factorization.

1011211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8870297.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1011211122 is about 31799.5459401546. The cubic root of 1011211122 is about 1003.7231615315.

Adding to 1011211122 its reverse (2211121101), we get a palindrome (3222332223).

The spelling of 1011211122 in words is "one billion, eleven million, two hundred eleven thousand, one hundred twenty-two".