1040022021 has 16 divisors (see below), whose sum is σ = 1432230336. Its totient is φ = 670939776.

The previous prime is 1040022017. The next prime is 1040022077. The reversal of 1040022021 is 1202200401.

It is not a de Polignac number, because 1040022021 - 2² = 1040022017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1040021988 and 1040022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040022421) 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 15 ways as a sum of consecutive naturals, for example, 33195 + ... + 56408.

It is an arithmetic number, because the mean of its divisors is an integer number (89514396).

Almost surely, 2^1040022021 is an apocalyptic number.

It is an amenable number.

1040022021 is a deficient number, since it is larger than the sum of its proper divisors (392208315).

1040022021 is an equidigital number, since it uses as much as digits as its factorization.

1040022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89732.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1040022021 is about 32249.3724124982. The cubic root of 1040022021 is about 1013.1665546618.

Adding to 1040022021 its reverse (1202200401), we get a palindrome (2242222422).

The spelling of 1040022021 in words is "one billion, forty million, twenty-two thousand, twenty-one".