21123202432200 has 192 divisors, whose sum is σ = 71997311877120. Its totient is φ = 5080455072000.

The previous prime is 21123202432193. The next prime is 21123202432229. The reversal of 21123202432200 is 223420232112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11762136 + ... + 13438535.

It is an arithmetic number, because the mean of its divisors is an integer number (374985999360).

Almost surely, 2^{21123202432200} is an apocalyptic number.

21123202432200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21123202432200 is an abundant number, since it is smaller than the sum of its proper divisors (50874109444920).

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

21123202432200 is a wasteful number, since it uses less digits than its factorization.

21123202432200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25200828 (or 25200819 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21123202432200 its reverse (223420232112), we get a palindrome (21346622664312).

The spelling of 21123202432200 in words is "twenty-one trillion, one hundred twenty-three billion, two hundred two million, four hundred thirty-two thousand, two hundred".