210333404421 has 48 divisors (see below), whose sum is σ = 362581899264. Its totient is φ = 114879660192.

The previous prime is 210333404327. The next prime is 210333404471. The reversal of 210333404421 is 124404333012.

210333404421 is a `hidden beast` number, since 210 + 3 + 3 + 3 + 4 + 0 + 442 + 1 = 666.

It is not a de Polignac number, because 210333404421 - 2³⁷ = 72894450949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210333404471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1927690 + ... + 2033876.

It is an arithmetic number, because the mean of its divisors is an integer number (7553789568).

Almost surely, 2^210333404421 is an apocalyptic number.

210333404421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210333404421 is a deficient number, since it is larger than the sum of its proper divisors (152248494843).

210333404421 is a wasteful number, since it uses less digits than its factorization.

210333404421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107590 (or 107587 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 210333404421 its reverse (124404333012), we get a palindrome (334737737433).

The spelling of 210333404421 in words is "two hundred ten billion, three hundred thirty-three million, four hundred four thousand, four hundred twenty-one".