101111112221 has 8 divisors (see below), whose sum is σ = 116699672064. Its totient is φ = 85808581200.

The previous prime is 101111112209. The next prime is 101111112227. The reversal of 101111112221 is 122211111101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101111112221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101111112196 and 101111112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111112227) 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 7 ways as a sum of consecutive naturals, for example, 71506445 + ... + 71507858.

It is an arithmetic number, because the mean of its divisors is an integer number (14587459008).

Almost surely, 2^101111112221 is an apocalyptic number.

It is an amenable number.

101111112221 is a deficient number, since it is larger than the sum of its proper divisors (15588559843).

101111112221 is a wasteful number, since it uses less digits than its factorization.

101111112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143014411.

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

Adding to 101111112221 its reverse (122211111101), we get a palindrome (223322223322).

The spelling of 101111112221 in words is "one hundred one billion, one hundred eleven million, one hundred twelve thousand, two hundred twenty-one".