1022021020010 has 64 divisors (see below), whose sum is σ = 2001513133728. Its totient is φ = 374171664384.

The previous prime is 1022021020001. The next prime is 1022021020037. The reversal of 1022021020010 is 100201202201.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 651211878529 + 370809141481 = 806977^2 + 608941^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1022021019973 and 1022021020000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12646652 + ... + 12727208.

Almost surely, 2^{1022021020010} is an apocalyptic number.

1022021020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1022021020010 is a deficient number, since it is larger than the sum of its proper divisors (979492113718).

1022021020010 is a wasteful number, since it uses less digits than its factorization.

1022021020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82635.

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

Adding to 1022021020010 its reverse (100201202201), we get a palindrome (1122222222211).

The spelling of 1022021020010 in words is "one trillion, twenty-two billion, twenty-one million, twenty thousand, ten".