10111111022211 has 4 divisors (see below), whose sum is σ = 13481481362952. Its totient is φ = 6740740681472.

The previous prime is 10111111022137. The next prime is 10111111022219. The reversal of 10111111022211 is 11222011111101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10111111022211 - 2⁷ = 10111111022083 is a prime.

It is a super-2 number, since 2×10111111022211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10111111022219) 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 3 ways as a sum of consecutive naturals, for example, 1685185170366 + ... + 1685185170371.

It is an arithmetic number, because the mean of its divisors is an integer number (3370370340738).

Almost surely, 2^{10111111022211} is an apocalyptic number.

10111111022211 is a deficient number, since it is larger than the sum of its proper divisors (3370370340741).

10111111022211 is an equidigital number, since it uses as much as digits as its factorization.

10111111022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370370340740.

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

Adding to 10111111022211 its reverse (11222011111101), we get a palindrome (21333122133312).

The spelling of 10111111022211 in words is "ten trillion, one hundred eleven billion, one hundred eleven million, twenty-two thousand, two hundred eleven".