21023442214 has 8 divisors (see below), whose sum is σ = 31535870400. Its totient is φ = 10511485416.

The previous prime is 21023442191. The next prime is 21023442227. The reversal of 21023442214 is 41224432012.

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, 31512 + ... + 207460.

It is an arithmetic number, because the mean of its divisors is an integer number (3941983800).

Almost surely, 2^21023442214 is an apocalyptic number.

21023442214 is a deficient number, since it is larger than the sum of its proper divisors (10512428186).

21023442214 is a wasteful number, since it uses less digits than its factorization.

21023442214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235694.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 21023442214 its reverse (41224432012), we get a palindrome (62247874226).

The spelling of 21023442214 in words is "twenty-one billion, twenty-three million, four hundred forty-two thousand, two hundred fourteen".