21231214114 has 16 divisors (see below), whose sum is σ = 34864760160. Its totient is φ = 9616448160.

The previous prime is 21231214079. The next prime is 21231214159. The reversal of 21231214114 is 41141213212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1698819 + ... + 1711270.

It is an arithmetic number, because the mean of its divisors is an integer number (2179047510).

Almost surely, 2^21231214114 is an apocalyptic number.

21231214114 is a deficient number, since it is larger than the sum of its proper divisors (13633546046).

21231214114 is a wasteful number, since it uses less digits than its factorization.

21231214114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410385.

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

Adding to 21231214114 its reverse (41141213212), we get a palindrome (62372427326).

The spelling of 21231214114 in words is "twenty-one billion, two hundred thirty-one million, two hundred fourteen thousand, one hundred fourteen".