10221203210 has 8 divisors (see below), whose sum is σ = 18398165796. Its totient is φ = 4088481280.

The previous prime is 10221203203. The next prime is 10221203227. The reversal of 10221203210 is 1230212201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8702464369 + 1518738841 = 93287^2 + 38971^2 .

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

It is a super-2 number, since 2×10221203210² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 511060151 + ... + 511060170.

Almost surely, 2^10221203210 is an apocalyptic number.

10221203210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221203210 is a deficient number, since it is larger than the sum of its proper divisors (8176962586).

10221203210 is a wasteful number, since it uses less digits than its factorization.

10221203210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022120328.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10221203210 its reverse (1230212201), we get a palindrome (11451415411).

The spelling of 10221203210 in words is "ten billion, two hundred twenty-one million, two hundred three thousand, two hundred ten".