111001221162 has 48 divisors (see below), whose sum is σ = 259094384640. Its totient is φ = 34142151456.

The previous prime is 111001221161. The next prime is 111001221167. The reversal of 111001221162 is 261122100111.

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

It is not an unprimeable number, because it can be changed into a prime (111001221161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 591303 + ... + 756069.

It is an arithmetic number, because the mean of its divisors is an integer number (5397799680).

Almost surely, 2^111001221162 is an apocalyptic number.

111001221162 is an abundant number, since it is smaller than the sum of its proper divisors (148093163478).

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

111001221162 is a wasteful number, since it uses less digits than its factorization.

111001221162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167667 (or 167664 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 111001221162 its reverse (261122100111), we get a palindrome (372123321273).

The spelling of 111001221162 in words is "one hundred eleven billion, one million, two hundred twenty-one thousand, one hundred sixty-two".