21122333200312 has 8 divisors (see below), whose sum is σ = 39604374750600. Its totient is φ = 10561166600152.

The previous prime is 21122333200291. The next prime is 21122333200327. The reversal of 21122333200312 is 21300233322112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320145825012 + ... + 1320145825027.

It is an arithmetic number, because the mean of its divisors is an integer number (4950546843825).

Almost surely, 2^{21122333200312} is an apocalyptic number.

It is an amenable number.

21122333200312 is a deficient number, since it is larger than the sum of its proper divisors (18482041550288).

21122333200312 is a wasteful number, since it uses less digits than its factorization.

21122333200312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640291650045 (or 2640291650041 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21122333200312 its reverse (21300233322112), we get a palindrome (42422566522424).

The spelling of 21122333200312 in words is "twenty-one trillion, one hundred twenty-two billion, three hundred thirty-three million, two hundred thousand, three hundred twelve".