1010021108 has 12 divisors (see below), whose sum is σ = 1769295780. Its totient is φ = 504508032.

The previous prime is 1010021099. The next prime is 1010021123. The reversal of 1010021108 is 8011200101.

It can be written as a sum of positive squares in 2 ways, for example, as 136936804 + 873084304 = 11702^2 + 29548^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1010021092 and 1010021101.

It is a congruent number.

It is an unprimeable number.

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, 121091 + ... + 129162.

It is an arithmetic number, because the mean of its divisors is an integer number (147441315).

Almost surely, 2^1010021108 is an apocalyptic number.

It is an amenable number.

1010021108 is a deficient number, since it is larger than the sum of its proper divisors (759274672).

1010021108 is a wasteful number, since it uses less digits than its factorization.

1010021108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251266 (or 251264 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 1010021108 is about 31780.8292528688. The cubic root of 1010021108 is about 1003.3292729742.

Adding to 1010021108 its reverse (8011200101), we get a palindrome (9021221209).

The spelling of 1010021108 in words is "one billion, ten million, twenty-one thousand, one hundred eight".