21412134122 has 4 divisors (see below), whose sum is σ = 32118201186. Its totient is φ = 10706067060.

The previous prime is 21412134103. The next prime is 21412134131. The reversal of 21412134122 is 22143121412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20787584041 + 624550081 = 144179^2 + 24991^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5353033529 + ... + 5353033532.

Almost surely, 2^21412134122 is an apocalyptic number.

21412134122 is a deficient number, since it is larger than the sum of its proper divisors (10706067064).

21412134122 is a wasteful number, since it uses less digits than its factorization.

21412134122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10706067063.

The product of its digits is 768, while the sum is 23.

Adding to 21412134122 its reverse (22143121412), we get a palindrome (43555255534).

The spelling of 21412134122 in words is "twenty-one billion, four hundred twelve million, one hundred thirty-four thousand, one hundred twenty-two".