111021211211101 has 8 divisors (see below), whose sum is σ = 114849673227000. Its totient is φ = 107192758821120.

The previous prime is 111021211211089. The next prime is 111021211211107. The reversal of 111021211211101 is 101112112120111.

It can be written as a sum of positive squares in 4 ways, for example, as 8082938988601 + 102938272222500 = 2843051^2 + 10145850^2 .

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 111021211211101 - 2⁹ = 111021211210589 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 (111021211211107) 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, 27255225 + ... + 31062673.

It is an arithmetic number, because the mean of its divisors is an integer number (14356209153375).

Almost surely, 2^{111021211211101} is an apocalyptic number.

It is an amenable number.

111021211211101 is a deficient number, since it is larger than the sum of its proper divisors (3828462015899).

111021211211101 is a wasteful number, since it uses less digits than its factorization.

111021211211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812959.

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

Adding to 111021211211101 its reverse (101112112120111), we get a palindrome (212133323331212).

The spelling of 111021211211101 in words is "one hundred eleven trillion, twenty-one billion, two hundred eleven million, two hundred eleven thousand, one hundred one".