21314702612420 has 96 divisors (see below), whose sum is σ = 53432340595200. Its totient is φ = 6983234463744.

The previous prime is 21314702612387. The next prime is 21314702612477. The reversal of 21314702612420 is 2421620741312.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 31235 + ... + 6529194.

It is an arithmetic number, because the mean of its divisors is an integer number (556586881200).

Almost surely, 2^{21314702612420} is an apocalyptic number.

21314702612420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21314702612420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26716170297600).

21314702612420 is an abundant number, since it is smaller than the sum of its proper divisors (32117637982780).

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

21314702612420 is a wasteful number, since it uses less digits than its factorization.

21314702612420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561477 (or 6561475 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 21314702612420 in words is "twenty-one trillion, three hundred fourteen billion, seven hundred two million, six hundred twelve thousand, four hundred twenty".