111201002010 has 64 divisors (see below), whose sum is σ = 338898297600. Its totient is φ = 25417371456.

The previous prime is 111201001997. The next prime is 111201002039. The reversal of 111201002010 is 10200102111.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111201001983 and 111201002001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29416365 + ... + 29420144.

It is an arithmetic number, because the mean of its divisors is an integer number (5295285900).

Almost surely, 2^111201002010 is an apocalyptic number.

111201002010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111201002010 is an abundant number, since it is smaller than the sum of its proper divisors (227697295590).

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

111201002010 is a wasteful number, since it uses less digits than its factorization.

111201002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58836532 (or 58836526 counting only the distinct ones).

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

Adding to 111201002010 its reverse (10200102111), we get a palindrome (121401104121).

The spelling of 111201002010 in words is "one hundred eleven billion, two hundred one million, two thousand, ten".