111221001150 has 72 divisors (see below), whose sum is σ = 320861260440. Its totient is φ = 25421941440.

The previous prime is 111221001149. The next prime is 111221001179. The reversal of 111221001150 is 51100122111.

111221001150 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111221001150² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7558705 + ... + 7573404.

It is an arithmetic number, because the mean of its divisors is an integer number (4456406395).

Almost surely, 2^111221001150 is an apocalyptic number.

111221001150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111221001150 is an abundant number, since it is smaller than the sum of its proper divisors (209640259290).

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

111221001150 is a wasteful number, since it uses less digits than its factorization.

111221001150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15132138 (or 15132126 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 111221001150 its reverse (51100122111), we get a palindrome (162321123261).

The spelling of 111221001150 in words is "one hundred eleven billion, two hundred twenty-one million, one thousand, one hundred fifty".