110121210000 has 150 divisors (see below), whose sum is σ = 385110092510. Its totient is φ = 29365632000.

The previous prime is 110121209999. The next prime is 110121210037. The reversal of 110121210000 is 12121011.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 52929444096 + 57191765904 = 230064^2 + 239148^2 .

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 an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 521785 + ... + 701784.

Almost surely, 2^110121210000 is an apocalyptic number.

110121210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110121210000 is an abundant number, since it is smaller than the sum of its proper divisors (274988882510).

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

110121210000 is a wasteful number, since it uses less digits than its factorization.

110121210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223603 (or 1223579 counting only the distinct ones).

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

Adding to 110121210000 its reverse (12121011), we get a palindrome (110133331011).

The spelling of 110121210000 in words is "one hundred ten billion, one hundred twenty-one million, two hundred ten thousand".