10111221210001 has 8 divisors (see below), whose sum is σ = 10262189264544. Its totient is φ = 9960254752800.

The previous prime is 10111221209977. The next prime is 10111221210007. The reversal of 10111221210001 is 10001212211101.

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 10111221210001 - 2²⁷ = 10111086992273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10111221210007) 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, 20320026 + ... + 20811676.

It is an arithmetic number, because the mean of its divisors is an integer number (1282773658068).

Almost surely, 2^{10111221210001} is an apocalyptic number.

It is an amenable number.

10111221210001 is a deficient number, since it is larger than the sum of its proper divisors (150968054543).

10111221210001 is an equidigital number, since it uses as much as digits as its factorization.

10111221210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798671.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10111221210001 its reverse (10001212211101), we get a palindrome (20112433421102).

The spelling of 10111221210001 in words is "ten trillion, one hundred eleven billion, two hundred twenty-one million, two hundred ten thousand, one".