111012222021211 has 8 divisors (see below), whose sum is σ = 128950965158624. Its totient is φ = 93593442453120.

The previous prime is 111012222021191. The next prime is 111012222021241. The reversal of 111012222021211 is 112120222210111.

It is a happy number.

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 111012222021211 - 2¹⁷ = 111012221890139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111012222021241) 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, 129990891870 + ... + 129990892723.

It is an arithmetic number, because the mean of its divisors is an integer number (16118870644828).

Almost surely, 2^{111012222021211} is an apocalyptic number.

111012222021211 is a deficient number, since it is larger than the sum of its proper divisors (17938743137413).

111012222021211 is an equidigital number, since it uses as much as digits as its factorization.

111012222021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259981784661.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111012222021211 its reverse (112120222210111), we get a palindrome (223132444231322).

The spelling of 111012222021211 in words is "one hundred eleven trillion, twelve billion, two hundred twenty-two million, twenty-one thousand, two hundred eleven".