10001100212221 has 8 divisors (see below), whose sum is σ = 10073657639360. Its totient is φ = 9928551457728.

The previous prime is 10001100212197. The next prime is 10001100212231. The reversal of 10001100212221 is 12221200110001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10001100212221 - 2¹⁵ = 10001100179453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001100212231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155560 + ... + 4475086.

It is an arithmetic number, because the mean of its divisors is an integer number (1259207204920).

Almost surely, 2^{10001100212221} is an apocalyptic number.

It is an amenable number.

10001100212221 is a deficient number, since it is larger than the sum of its proper divisors (72557427139).

10001100212221 is a wasteful number, since it uses less digits than its factorization.

10001100212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336323.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10001100212221 its reverse (12221200110001), we get a palindrome (22222300322222).

The spelling of 10001100212221 in words is "ten trillion, one billion, one hundred million, two hundred twelve thousand, two hundred twenty-one".