21412520413442 has 8 divisors (see below), whose sum is σ = 32140794867600. Its totient is φ = 10698922124244.

The previous prime is 21412520413399. The next prime is 21412520413463. The reversal of 21412520413442 is 24431402521412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21412520413442² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3669037592 + ... + 3669043427.

It is an arithmetic number, because the mean of its divisors is an integer number (4017599358450).

Almost surely, 2^{21412520413442} is an apocalyptic number.

21412520413442 is a deficient number, since it is larger than the sum of its proper divisors (10728274454158).

21412520413442 is a wasteful number, since it uses less digits than its factorization.

21412520413442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7338082480.

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 21412520413442 its reverse (24431402521412), we get a palindrome (45843922934854).

The spelling of 21412520413442 in words is "twenty-one trillion, four hundred twelve billion, five hundred twenty million, four hundred thirteen thousand, four hundred forty-two".