1021311122 has 16 divisors (see below), whose sum is σ = 1677775680. Its totient is φ = 463384272.

The previous prime is 1021311121. The next prime is 1021311127. The reversal of 1021311122 is 2211131201.

1021311122 is nontrivially palindromic in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 1021311097 and 1021311106.

It is not an unprimeable number, because it can be changed into a prime (1021311121) 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, 331358 + ... + 334425.

It is an arithmetic number, because the mean of its divisors is an integer number (104860980).

Almost surely, 2^1021311122 is an apocalyptic number.

1021311122 is a deficient number, since it is larger than the sum of its proper divisors (656464558).

1021311122 is a wasteful number, since it uses less digits than its factorization.

1021311122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665857.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1021311122 is about 31957.9586644704. The cubic root of 1021311122 is about 1007.0538337709.

Adding to 1021311122 its reverse (2211131201), we get a palindrome (3232442323).

The spelling of 1021311122 in words is "one billion, twenty-one million, three hundred eleven thousand, one hundred twenty-two".