21002233100001 has 16 divisors (see below), whose sum is σ = 28146841008000. Its totient is φ = 13929572688768.

The previous prime is 21002233099979. The next prime is 21002233100003. The reversal of 21002233100001 is 10000133220012.

It is not a de Polignac number, because 21002233100001 - 2⁶ = 21002233099937 is a prime.

It is a super-2 number, since 2×21002233100001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21002233100003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3393315 + ... + 7315671.

It is an arithmetic number, because the mean of its divisors is an integer number (1759177563000).

Almost surely, 2^{21002233100001} is an apocalyptic number.

It is an amenable number.

21002233100001 is a deficient number, since it is larger than the sum of its proper divisors (7144607907999).

21002233100001 is a wasteful number, since it uses less digits than its factorization.

21002233100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3931528.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21002233100001 its reverse (10000133220012), we get a palindrome (31002366320013).

The spelling of 21002233100001 in words is "twenty-one trillion, two billion, two hundred thirty-three million, one hundred thousand, one".