21110153200 has 30 divisors (see below), whose sum is σ = 50717144024. Its totient is φ = 8444061120.

The previous prime is 21110153153. The next prime is 21110153203. The reversal of 21110153200 is 235101112.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110153203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26387292 + ... + 26388091.

Almost surely, 2^21110153200 is an apocalyptic number.

21110153200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21110153200 is an abundant number, since it is smaller than the sum of its proper divisors (29606990824).

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

21110153200 is a wasteful number, since it uses less digits than its factorization.

21110153200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52775401 (or 52775390 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 21110153200 its reverse (235101112), we get a palindrome (21345254312).

The spelling of 21110153200 in words is "twenty-one billion, one hundred ten million, one hundred fifty-three thousand, two hundred".