21213436396152 has 256 divisors, whose sum is σ = 72208846725120. Its totient is φ = 5014502438400.

The previous prime is 21213436396079. The next prime is 21213436396213. The reversal of 21213436396152 is 25169363431212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4512678 + ... + 7924085.

It is an arithmetic number, because the mean of its divisors is an integer number (282065807520).

Almost surely, 2^{21213436396152} is an apocalyptic number.

21213436396152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21213436396152 is an abundant number, since it is smaller than the sum of its proper divisors (50995410328968).

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

21213436396152 is a wasteful number, since it uses less digits than its factorization.

21213436396152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12436874 (or 12436870 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 48.

The spelling of 21213436396152 in words is "twenty-one trillion, two hundred thirteen billion, four hundred thirty-six million, three hundred ninety-six thousand, one hundred fifty-two".