111002120010 has 32 divisors (see below), whose sum is σ = 296005654080. Its totient is φ = 29600565264.

The previous prime is 111002119997. The next prime is 111002120027. The reversal of 111002120010 is 10021200111.

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 = 111002119974 and 111002120001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205559212 + ... + 205559751.

It is an arithmetic number, because the mean of its divisors is an integer number (9250176690).

Almost surely, 2^111002120010 is an apocalyptic number.

111002120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111002120010 is an abundant number, since it is smaller than the sum of its proper divisors (185003534070).

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

111002120010 is a wasteful number, since it uses less digits than its factorization.

111002120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411118979 (or 411118973 counting only the distinct ones).

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

Adding to 111002120010 its reverse (10021200111), we get a palindrome (121023320121).

It can be divided in two parts, 1 and 11002120010, that added together give a palindrome (11002120011).

The spelling of 111002120010 in words is "one hundred eleven billion, two million, one hundred twenty thousand, ten".