10002201021002 has 4 divisors (see below), whose sum is σ = 15003301531506. Its totient is φ = 5001100510500.

The previous prime is 10002201020989. The next prime is 10002201021013. The reversal of 10002201021002 is 20012010220001.

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., 7333973513161 + 2668227507841 = 2708131^2 + 1633471^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500550255249 + ... + 2500550255252.

Almost surely, 2^{10002201021002} is an apocalyptic number.

10002201021002 is a deficient number, since it is larger than the sum of its proper divisors (5001100510504).

10002201021002 is an equidigital number, since it uses as much as digits as its factorization.

10002201021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001100510503.

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

Adding to 10002201021002 its reverse (20012010220001), we get a palindrome (30014211241003).

The spelling of 10002201021002 in words is "ten trillion, two billion, two hundred one million, twenty-one thousand, two".