1022021002 has 16 divisors (see below), whose sum is σ = 1569739392. Its totient is φ = 498914640.

The previous prime is 1022020999. The next prime is 1022021009. The reversal of 1022021002 is 2001202201.

It is a super-3 number, since 3×1022021002³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022021002.

It is not an unprimeable number, because it can be changed into a prime (1022021009) 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, 20313 + ... + 49564.

It is an arithmetic number, because the mean of its divisors is an integer number (98108712).

Almost surely, 2^1022021002 is an apocalyptic number.

1022021002 is a deficient number, since it is larger than the sum of its proper divisors (547718390).

1022021002 is a wasteful number, since it uses less digits than its factorization.

1022021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70053.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1022021002 is about 31969.0632017893. The cubic root of 1022021002 is about 1007.2871031415.

Adding to 1022021002 its reverse (2001202201), we get a palindrome (3023223203).

The spelling of 1022021002 in words is "one billion, twenty-two million, twenty-one thousand, two".