10001221011002 has 16 divisors (see below), whose sum is σ = 16157453018112. Its totient is φ = 4615481169840.

The previous prime is 10001221010927. The next prime is 10001221011011. The reversal of 10001221011002 is 20011012210001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19195874 + ... + 19709997.

It is an arithmetic number, because the mean of its divisors is an integer number (1009840813632).

Almost surely, 2^{10001221011002} is an apocalyptic number.

10001221011002 is a deficient number, since it is larger than the sum of its proper divisors (6156232007110).

10001221011002 is a wasteful number, since it uses less digits than its factorization.

10001221011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38915773.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10001221011002 its reverse (20011012210001), we get a palindrome (30012233221003).

The spelling of 10001221011002 in words is "ten trillion, one billion, two hundred twenty-one million, eleven thousand, two".