1021122 has 48 divisors (see below), whose sum is σ = 2426112. Its totient is φ = 309120.

The previous prime is 1021093. The next prime is 1021123. The reversal of 1021122 is 2211201.

1021122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

1021122 is a modest number, since divided by 1122 gives 102 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1021123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14347 + ... + 14417.

It is an arithmetic number, because the mean of its divisors is an integer number (50544).

2^1021122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1213056).

1021122 is an abundant number, since it is smaller than the sum of its proper divisors (1404990).

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

1021122 is a wasteful number, since it uses less digits than its factorization.

1021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1021122 is about 1010.5058139368. The cubic root of 1021122 is about 100.6991669301.

Adding to 1021122 its reverse (2211201), we get a palindrome (3232323).

The spelling of 1021122 in words is "one million, twenty-one thousand, one hundred twenty-two".