101112122211 has 4 divisors (see below), whose sum is σ = 134816162952. Its totient is φ = 67408081472.

The previous prime is 101112122207. The next prime is 101112122213. The reversal of 101112122211 is 112221211101.

It is a happy number.

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 101112122211 - 2² = 101112122207 is a prime.

It is a super-2 number, since 2×101112122211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101112122213) 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 3 ways as a sum of consecutive naturals, for example, 16852020366 + ... + 16852020371.

It is an arithmetic number, because the mean of its divisors is an integer number (33704040738).

Almost surely, 2^101112122211 is an apocalyptic number.

101112122211 is a deficient number, since it is larger than the sum of its proper divisors (33704040741).

101112122211 is an equidigital number, since it uses as much as digits as its factorization.

101112122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33704040740.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101112122211 its reverse (112221211101), we get a palindrome (213333333312).

The spelling of 101112122211 in words is "one hundred one billion, one hundred twelve million, one hundred twenty-two thousand, two hundred eleven".