111012011221122 has 48 divisors (see below), whose sum is σ = 262715568242400. Its totient is φ = 33598523692800.

The previous prime is 111012011221117. The next prime is 111012011221141. The reversal of 111012011221122 is 221122110210111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111012011221095 and 111012011221104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 345503247 + ... + 345824402.

It is an arithmetic number, because the mean of its divisors is an integer number (5473241005050).

Almost surely, 2^{111012011221122} is an apocalyptic number.

111012011221122 is an abundant number, since it is smaller than the sum of its proper divisors (151703557021278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111012011221122 is a wasteful number, since it uses less digits than its factorization.

111012011221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691328479 (or 691328476 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111012011221122 its reverse (221122110210111), we get a palindrome (332134121431233).

The spelling of 111012011221122 in words is "one hundred eleven trillion, twelve billion, eleven million, two hundred twenty-one thousand, one hundred twenty-two".