210121133304 has 64 divisors (see below), whose sum is σ = 576991699200. Its totient is φ = 63469080576.

The previous prime is 210121133213. The next prime is 210121133311. The reversal of 210121133304 is 403331121012.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10006729 + ... + 10027704.

It is an arithmetic number, because the mean of its divisors is an integer number (9015495300).

Almost surely, 2^210121133304 is an apocalyptic number.

210121133304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

210121133304 is an abundant number, since it is smaller than the sum of its proper divisors (366870565896).

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

210121133304 is a wasteful number, since it uses less digits than its factorization.

210121133304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20034484 (or 20034480 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 210121133304 its reverse (403331121012), we get a palindrome (613452254316).

The spelling of 210121133304 in words is "two hundred ten billion, one hundred twenty-one million, one hundred thirty-three thousand, three hundred four".