111210210000 has 150 divisors (see below), whose sum is σ = 388918482810. Its totient is φ = 29656032000.

The previous prime is 111210209959. The next prime is 111210210043. The reversal of 111210210000 is 12012111.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 71539131024 + 39671078976 = 267468^2 + 199176^2 .

It is a tau number, because it is divible by the number of its divisors (150).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 527835 + ... + 707834.

Almost surely, 2^111210210000 is an apocalyptic number.

111210210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111210210000 is an abundant number, since it is smaller than the sum of its proper divisors (277708272810).

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

111210210000 is a wasteful number, since it uses less digits than its factorization.

111210210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235703 (or 1235679 counting only the distinct ones).

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

Adding to 111210210000 its reverse (12012111), we get a palindrome (111222222111).

The spelling of 111210210000 in words is "one hundred eleven billion, two hundred ten million, two hundred ten thousand".