11210001221111 has 48 divisors (see below), whose sum is σ = 14843216236800. Its totient is φ = 8264118804480.

The previous prime is 11210001221071. The next prime is 11210001221173. The reversal of 11210001221111 is 11112210001211.

It is not a de Polignac number, because 11210001221111 - 2¹⁰ = 11210001220087 is a prime.

It is a super-2 number, since 2×11210001221111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210001221411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11421431 + ... + 12364023.

It is an arithmetic number, because the mean of its divisors is an integer number (309233671600).

Almost surely, 2^{11210001221111} is an apocalyptic number.

11210001221111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11210001221111 is a deficient number, since it is larger than the sum of its proper divisors (3633215015689).

11210001221111 is a wasteful number, since it uses less digits than its factorization.

11210001221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943380 (or 943369 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11210001221111 its reverse (11112210001211), we get a palindrome (22322211222322).

The spelling of 11210001221111 in words is "eleven trillion, two hundred ten billion, one million, two hundred twenty-one thousand, one hundred eleven".