111221221221122 has 8 divisors (see below), whose sum is σ = 166835476256400. Its totient is φ = 55609395802324.

The previous prime is 111221221221091. The next prime is 111221221221139. The reversal of 111221221221122 is 221122122122111.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607289672 + ... + 607472787.

It is an arithmetic number, because the mean of its divisors is an integer number (20854434532050).

Almost surely, 2^{111221221221122} is an apocalyptic number.

111221221221122 is a deficient number, since it is larger than the sum of its proper divisors (55614255035278).

111221221221122 is a wasteful number, since it uses less digits than its factorization.

111221221221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214808240.

The product of its digits is 256, while the sum is 23.

Adding to 111221221221122 its reverse (221122122122111), we get a palindrome (332343343343233).

The spelling of 111221221221122 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".