110002121002000 has 80 divisors (see below), whose sum is σ = 265995858269232. Its totient is φ = 43999073433600.

The previous prime is 110002121001977. The next prime is 110002121002001. The reversal of 110002121002000 is 200121200011.

It can be written as a sum of positive squares in 8 ways, for example, as 63144700820496 + 46857420181504 = 7946364^2 + 6845248^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (110002121002001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49049182 + ... + 51242818.

Almost surely, 2^{110002121002000} is an apocalyptic number.

110002121002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110002121002000 is an abundant number, since it is smaller than the sum of its proper divisors (155993737267232).

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

110002121002000 is a wasteful number, since it uses less digits than its factorization.

110002121002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218733 (or 2218717 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 110002121002000 its reverse (200121200011), we get a palindrome (110202242202011).

The spelling of 110002121002000 in words is "one hundred ten trillion, two billion, one hundred twenty-one million, two thousand".