10111221101211 has 8 divisors (see below), whose sum is σ = 13493141058624. Its totient is φ = 6735057605640.

The previous prime is 10111221101207. The next prime is 10111221101221. The reversal of 10111221101211 is 11210112211101.

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

It is not a de Polignac number, because 10111221101211 - 2² = 10111221101207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10111221101221) 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, 1439111361 + ... + 1439118386.

It is an arithmetic number, because the mean of its divisors is an integer number (1686642632328).

Almost surely, 2^{10111221101211} is an apocalyptic number.

10111221101211 is a deficient number, since it is larger than the sum of its proper divisors (3381919957413).

10111221101211 is a wasteful number, since it uses less digits than its factorization.

10111221101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878230921.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 10111221101211 its reverse (11210112211101), we get a palindrome (21321333312312).

The spelling of 10111221101211 in words is "ten trillion, one hundred eleven billion, two hundred twenty-one million, one hundred one thousand, two hundred eleven".