10111111021211 has 8 divisors (see below), whose sum is σ = 10211951260848. Its totient is φ = 10010285100000.

The previous prime is 10111111021201. The next prime is 10111111021223. The reversal of 10111111021211 is 11212011111101.

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 10111111021211 - 2⁶ = 10111111021147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10111111021201) 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, 2157440 + ... + 4987661.

It is an arithmetic number, because the mean of its divisors is an integer number (1276493907606).

Almost surely, 2^{10111111021211} is an apocalyptic number.

10111111021211 is a deficient number, since it is larger than the sum of its proper divisors (100840239637).

10111111021211 is a wasteful number, since it uses less digits than its factorization.

10111111021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159213.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 10111111021211 its reverse (11212011111101), we get a palindrome (21323122132312).

The spelling of 10111111021211 in words is "ten trillion, one hundred eleven billion, one hundred eleven million, twenty-one thousand, two hundred eleven".