21336949850112 has 816 divisors, whose sum is σ = 71848734991488. Its totient is φ = 6278369771520.

The previous prime is 21336949850059. The next prime is 21336949850171. The reversal of 21336949850112 is 21105894963312.

21336949850112 is a `hidden beast` number, since 2 + 1 + 3 + 36 + 9 + 4 + 98 + 501 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 4761646912 + ... + 4761651392.

Almost surely, 2^{21336949850112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21336949850112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35924367495744).

21336949850112 is an abundant number, since it is smaller than the sum of its proper divisors (50511785141376).

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

21336949850112 is an frugal number, since it uses more digits than its factorization.

21336949850112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564 (or 4522 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 21336949850112 in words is "twenty-one trillion, three hundred thirty-six billion, nine hundred forty-nine million, eight hundred fifty thousand, one hundred twelve".