21201030333331 has 8 divisors (see below), whose sum is σ = 22350571444224. Its totient is φ = 20080591529160.

The previous prime is 21201030333323. The next prime is 21201030333347. The reversal of 21201030333331 is 13333303010212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21201030333331 - 2³ = 21201030333323 is a prime.

It is a super-2 number, since 2×21201030333331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21201030333296 and 21201030333305.

It is not an unprimeable number, because it can be changed into a prime (21201030333361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7275575185 + ... + 7275578098.

It is an arithmetic number, because the mean of its divisors is an integer number (2793821430528).

Almost surely, 2^{21201030333331} is an apocalyptic number.

21201030333331 is a deficient number, since it is larger than the sum of its proper divisors (1149541110893).

21201030333331 is a wasteful number, since it uses less digits than its factorization.

21201030333331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14551153361.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 21201030333331 its reverse (13333303010212), we get a palindrome (34534333343543).

The spelling of 21201030333331 in words is "twenty-one trillion, two hundred one billion, thirty million, three hundred thirty-three thousand, three hundred thirty-one".