10001022002 has 4 divisors (see below), whose sum is σ = 15001533006. Its totient is φ = 5000511000.

The previous prime is 10001021993. The next prime is 10001022013. The reversal of 10001022002 is 20022010001.

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., 5776152001 + 4224870001 = 76001^2 + 64999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500255499 + ... + 2500255502.

Almost surely, 2^10001022002 is an apocalyptic number.

10001022002 is a deficient number, since it is larger than the sum of its proper divisors (5000511004).

10001022002 is an equidigital number, since it uses as much as digits as its factorization.

10001022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000511003.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 10001022002 its reverse (20022010001), we get a palindrome (30023032003).

The spelling of 10001022002 in words is "ten billion, one million, twenty-two thousand, two".