10021010 has 8 divisors (see below), whose sum is σ = 18037836. Its totient is φ = 4008400.

The previous prime is 10021003. The next prime is 10021027. The reversal of 10021010 is 1012001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9078169 + 942841 = 3013^2 + 971^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 10020985 and 10021003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501041 + ... + 501060.

Almost surely, 2^10021010 is an apocalyptic number.

10021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10021010 is a deficient number, since it is larger than the sum of its proper divisors (8016826).

10021010 is a wasteful number, since it uses less digits than its factorization.

10021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002108.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 10021010 is about 3165.5978898148. The cubic root of 10021010 is about 215.5942457013.

Adding to 10021010 its reverse (1012001), we get a palindrome (11033011).

Subtracting from 10021010 its reverse (1012001), we obtain a palindrome (9009009).

The spelling of 10021010 in words is "ten million, twenty-one thousand, ten".