21833337020 has 24 divisors (see below), whose sum is σ = 50018190768. Its totient is φ = 7939395200.

The previous prime is 21833337017. The next prime is 21833337023. The reversal of 21833337020 is 2073333812.

It is an interprime number because it is at equal distance from previous prime (21833337017) and next prime (21833337023).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21833337023) 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 7 ways as a sum of consecutive naturals, for example, 49621001 + ... + 49621440.

It is an arithmetic number, because the mean of its divisors is an integer number (2084091282).

Almost surely, 2^21833337020 is an apocalyptic number.

21833337020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21833337020 is an abundant number, since it is smaller than the sum of its proper divisors (28184853748).

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

21833337020 is a wasteful number, since it uses less digits than its factorization.

21833337020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99242461 (or 99242459 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

It can be divided in two parts, 21833 and 337020, that added together give a palindrome (358853).

The spelling of 21833337020 in words is "twenty-one billion, eight hundred thirty-three million, three hundred thirty-seven thousand, twenty".