111000121002 has 12 divisors (see below), whose sum is σ = 240500262210. Its totient is φ = 37000040328.

The previous prime is 111000120983. The next prime is 111000121003. The reversal of 111000121002 is 200121000111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 110974930641 + 25190361 = 333129^2 + 5019^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (111000121003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3083336677 + ... + 3083336712.

Almost surely, 2^111000121002 is an apocalyptic number.

111000121002 is an abundant number, since it is smaller than the sum of its proper divisors (129500141208).

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

111000121002 is a wasteful number, since it uses less digits than its factorization.

111000121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166673397 (or 6166673394 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111000121002 its reverse (200121000111), we get a palindrome (311121121113).

The spelling of 111000121002 in words is "one hundred eleven billion, one hundred twenty-one thousand, two".