21412121134 has 8 divisors (see below), whose sum is σ = 32132195640. Its totient is φ = 10701389256.

The previous prime is 21412121131. The next prime is 21412121167. The reversal of 21412121134 is 43112121412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412121131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2329924 + ... + 2339095.

It is an arithmetic number, because the mean of its divisors is an integer number (4016524455).

Almost surely, 2^21412121134 is an apocalyptic number.

21412121134 is a deficient number, since it is larger than the sum of its proper divisors (10720074506).

21412121134 is a wasteful number, since it uses less digits than its factorization.

21412121134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671314.

The product of its digits is 384, while the sum is 22.

Adding to 21412121134 its reverse (43112121412), we get a palindrome (64524242546).

The spelling of 21412121134 in words is "twenty-one billion, four hundred twelve million, one hundred twenty-one thousand, one hundred thirty-four".