10021221202 has 4 divisors (see below), whose sum is σ = 15031831806. Its totient is φ = 5010610600.

The previous prime is 10021221191. The next prime is 10021221239. The reversal of 10021221202 is 20212212001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8304859161 + 1716362041 = 91131^2 + 41429^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505305299 + ... + 2505305302.

Almost surely, 2^10021221202 is an apocalyptic number.

10021221202 is a deficient number, since it is larger than the sum of its proper divisors (5010610604).

10021221202 is an equidigital number, since it uses as much as digits as its factorization.

10021221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010610603.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10021221202 its reverse (20212212001), we get a palindrome (30233433203).

The spelling of 10021221202 in words is "ten billion, twenty-one million, two hundred twenty-one thousand, two hundred two".