1022021201 has 8 divisors (see below), whose sum is σ = 1028843904. Its totient is φ = 1015209360.

The previous prime is 1022021171. The next prime is 1022021239. The reversal of 1022021201 is 1021202201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1022021201 - 2¹⁰ = 1022020177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022021501) 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, 279656 + ... + 283286.

It is an arithmetic number, because the mean of its divisors is an integer number (128605488).

Almost surely, 2^1022021201 is an apocalyptic number.

It is an amenable number.

1022021201 is a deficient number, since it is larger than the sum of its proper divisors (6822703).

1022021201 is a wasteful number, since it uses less digits than its factorization.

1022021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1022021201 is about 31969.0663141731. The cubic root of 1022021201 is about 1007.2871685186.

Adding to 1022021201 its reverse (1021202201), we get a palindrome (2043223402).

The spelling of 1022021201 in words is "one billion, twenty-two million, twenty-one thousand, two hundred one".