21333454420036 has 24 divisors (see below), whose sum is σ = 40727620898496. Its totient is φ = 9696996877920.

The previous prime is 21333454419973. The next prime is 21333454420177. The reversal of 21333454420036 is 63002445433312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29654185 + ... + 30365071.

It is an arithmetic number, because the mean of its divisors is an integer number (1696984204104).

Almost surely, 2^{21333454420036} is an apocalyptic number.

It is an amenable number.

21333454420036 is a deficient number, since it is larger than the sum of its proper divisors (19394166478460).

21333454420036 is a wasteful number, since it uses less digits than its factorization.

21333454420036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392939 (or 1392937 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 40.

Adding to 21333454420036 its reverse (63002445433312), we get a palindrome (84335899853348).

The spelling of 21333454420036 in words is "twenty-one trillion, three hundred thirty-three billion, four hundred fifty-four million, four hundred twenty thousand, thirty-six".