21213401210532 has 48 divisors (see below), whose sum is σ = 55361930108800. Its totient is φ = 7024305031200.

The previous prime is 21213401210501. The next prime is 21213401210657. The reversal of 21213401210532 is 23501210431212.

It is a happy number.

21213401210532 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 3 + 4 + 0 + 121 + 0 + 532 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21213401210496 and 21213401210505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650382307 + ... + 650414922.

Almost surely, 2^{21213401210532} is an apocalyptic number.

It is an amenable number.

21213401210532 is an abundant number, since it is smaller than the sum of its proper divisors (34148528898268).

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

21213401210532 is a wasteful number, since it uses less digits than its factorization.

21213401210532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300797393 (or 1300797385 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 21213401210532 its reverse (23501210431212), we get a palindrome (44714611641744).

The spelling of 21213401210532 in words is "twenty-one trillion, two hundred thirteen billion, four hundred one million, two hundred ten thousand, five hundred thirty-two".