1022021141 has 4 divisors (see below), whose sum is σ = 1049643372. Its totient is φ = 994398912.

The previous prime is 1022021111. The next prime is 1022021159. The reversal of 1022021141 is 1411202201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 681471025 + 340550116 = 26105^2 + 18454^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022021141 - 2¹⁴ = 1022004757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022021111) 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 3 ways as a sum of consecutive naturals, for example, 13811060 + ... + 13811133.

It is an arithmetic number, because the mean of its divisors is an integer number (262410843).

Almost surely, 2^1022021141 is an apocalyptic number.

It is an amenable number.

1022021141 is a deficient number, since it is larger than the sum of its proper divisors (27622231).

1022021141 is an equidigital number, since it uses as much as digits as its factorization.

1022021141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27622230.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1022021141 is about 31969.0653757660. The cubic root of 1022021141 is about 1007.2871488069.

Adding to 1022021141 its reverse (1411202201), we get a palindrome (2433223342).

The spelling of 1022021141 in words is "one billion, twenty-two million, twenty-one thousand, one hundred forty-one".