10021220210 has 32 divisors (see below), whose sum is σ = 18353459520. Its totient is φ = 3938500672.

The previous prime is 10021220207. The next prime is 10021220227. The reversal of 10021220210 is 1202212001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10021220191 and 10021220200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670837 + ... + 1676823.

It is an arithmetic number, because the mean of its divisors is an integer number (573545610).

Almost surely, 2^10021220210 is an apocalyptic number.

10021220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10021220210 is a deficient number, since it is larger than the sum of its proper divisors (8332239310).

10021220210 is a wasteful number, since it uses less digits than its factorization.

10021220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8890.

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

Adding to 10021220210 its reverse (1202212001), we get a palindrome (11223432211).

The spelling of 10021220210 in words is "ten billion, twenty-one million, two hundred twenty thousand, two hundred ten".