111010221121111 has 8 divisors (see below), whose sum is σ = 119558599875680. Its totient is φ = 102463146791712.

The previous prime is 111010221121103. The next prime is 111010221121123. The reversal of 111010221121111 is 111121122010111.

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 111010221121111 - 2³ = 111010221121103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010221121211) 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, 325929531 + ... + 326269948.

It is an arithmetic number, because the mean of its divisors is an integer number (14944824984460).

Almost surely, 2^{111010221121111} is an apocalyptic number.

111010221121111 is a deficient number, since it is larger than the sum of its proper divisors (8548378754569).

111010221121111 is a wasteful number, since it uses less digits than its factorization.

111010221121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652212585.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111010221121111 its reverse (111121122010111), we get a palindrome (222131343131222).

The spelling of 111010221121111 in words is "one hundred eleven trillion, ten billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred eleven".