21314221046 has 8 divisors (see below), whose sum is σ = 31983417840. Its totient is φ = 10653081768.

The previous prime is 21314221043. The next prime is 21314221081. The reversal of 21314221046 is 64012241312.

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 (21314221043) 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, 2007761 + ... + 2018348.

It is an arithmetic number, because the mean of its divisors is an integer number (3997927230).

Almost surely, 2^21314221046 is an apocalyptic number.

21314221046 is a deficient number, since it is larger than the sum of its proper divisors (10669196794).

21314221046 is a wasteful number, since it uses less digits than its factorization.

21314221046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028758.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 21314221046 its reverse (64012241312), we get a palindrome (85326462358).

The spelling of 21314221046 in words is "twenty-one billion, three hundred fourteen million, two hundred twenty-one thousand, forty-six".