21041223102200 has 96 divisors (see below), whose sum is σ = 56019379485600. Its totient is φ = 7199960240640.

The previous prime is 21041223102197. The next prime is 21041223102203. The reversal of 21041223102200 is 220132214012.

It is an interprime number because it is at equal distance from previous prime (21041223102197) and next prime (21041223102203).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21041223102203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14051099 + ... + 15476298.

It is an arithmetic number, because the mean of its divisors is an integer number (583535202975).

Almost surely, 2^{21041223102200} is an apocalyptic number.

21041223102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21041223102200 is an abundant number, since it is smaller than the sum of its proper divisors (34978156383400).

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

21041223102200 is a wasteful number, since it uses less digits than its factorization.

21041223102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29527929 (or 29527920 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21041223102200 its reverse (220132214012), we get a palindrome (21261355316212).

The spelling of 21041223102200 in words is "twenty-one trillion, forty-one billion, two hundred twenty-three million, one hundred two thousand, two hundred".