21833338382901 has 24 divisors (see below), whose sum is σ = 31639508858880. Its totient is φ = 14508338040096.

The previous prime is 21833338382881. The next prime is 21833338382909. The reversal of 21833338382901 is 10928383333812.

21833338382901 is a `hidden beast` number, since 2 + 18 + 3 + 3 + 338 + 3 + 8 + 290 + 1 = 666.

It is not a de Polignac number, because 21833338382901 - 2¹⁸ = 21833338120757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21833338382909) 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, 786115 + ... + 6654671.

It is an arithmetic number, because the mean of its divisors is an integer number (1318312869120).

Almost surely, 2^{21833338382901} is an apocalyptic number.

It is an amenable number.

21833338382901 is a deficient number, since it is larger than the sum of its proper divisors (9806170475979).

21833338382901 is a wasteful number, since it uses less digits than its factorization.

21833338382901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5869905 (or 5869902 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 21833338382901 in words is "twenty-one trillion, eight hundred thirty-three billion, three hundred thirty-eight million, three hundred eighty-two thousand, nine hundred one".