10001101031221 has 8 divisors (see below), whose sum is σ = 10406605330944. Its totient is φ = 9603626519760.

The previous prime is 10001101031213. The next prime is 10001101031231. The reversal of 10001101031221 is 12213010110001.

It is a happy number.

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 10001101031221 - 2³ = 10001101031213 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 (10001101031231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2007444525 + ... + 2007449506.

It is an arithmetic number, because the mean of its divisors is an integer number (1300825666368).

Almost surely, 2^{10001101031221} is an apocalyptic number.

It is an amenable number.

10001101031221 is a deficient number, since it is larger than the sum of its proper divisors (405504299723).

10001101031221 is an equidigital number, since it uses as much as digits as its factorization.

10001101031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014894131.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10001101031221 its reverse (12213010110001), we get a palindrome (22214111141222).

The spelling of 10001101031221 in words is "ten trillion, one billion, one hundred one million, thirty-one thousand, two hundred twenty-one".