21022101113200 has 120 divisors (see below), whose sum is σ = 56378342376576. Its totient is φ = 7466623584000.

The previous prime is 21022101113197. The next prime is 21022101113203. The reversal of 21022101113200 is 231110122012.

It is an interprime number because it is at equal distance from previous prime (21022101113197) and next prime (21022101113203).

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 (21022101113203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55366036 + ... + 55744435.

Almost surely, 2^{21022101113200} is an apocalyptic number.

21022101113200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022101113200 is an abundant number, since it is smaller than the sum of its proper divisors (35356241263376).

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

21022101113200 is a wasteful number, since it uses less digits than its factorization.

21022101113200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111110543 (or 111110532 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21022101113200 its reverse (231110122012), we get a palindrome (21253211235212).

The spelling of 21022101113200 in words is "twenty-one trillion, twenty-two billion, one hundred one million, one hundred thirteen thousand, two hundred".