21214333142 has 8 divisors (see below), whose sum is σ = 31892373000. Its totient is φ = 10583542144.

The previous prime is 21214333121. The next prime is 21214333157. The reversal of 21214333142 is 24133341212.

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

It is a congruent number.

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, 11811092 + ... + 11812887.

It is an arithmetic number, because the mean of its divisors is an integer number (3986546625).

Almost surely, 2^21214333142 is an apocalyptic number.

21214333142 is a deficient number, since it is larger than the sum of its proper divisors (10678039858).

21214333142 is a wasteful number, since it uses less digits than its factorization.

21214333142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23624430.

The product of its digits is 3456, while the sum is 26.

Adding to 21214333142 its reverse (24133341212), we get a palindrome (45347674354).

The spelling of 21214333142 in words is "twenty-one billion, two hundred fourteen million, three hundred thirty-three thousand, one hundred forty-two".