111002011002 has 48 divisors (see below), whose sum is σ = 246461807592. Its totient is φ = 36084810240.

The previous prime is 111002010997. The next prime is 111002011027. The reversal of 111002011002 is 200110200111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 66451043961 + 44550967041 = 257781^2 + 211071^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2067198 + ... + 2120214.

Almost surely, 2^111002011002 is an apocalyptic number.

111002011002 is an abundant number, since it is smaller than the sum of its proper divisors (135459796590).

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

111002011002 is a wasteful number, since it uses less digits than its factorization.

111002011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55903 (or 55900 counting only the distinct ones).

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

Adding to 111002011002 its reverse (200110200111), we get a palindrome (311112211113).

The spelling of 111002011002 in words is "one hundred eleven billion, two million, eleven thousand, two".