21004150214 has 8 divisors (see below), whose sum is σ = 32040229320. Its totient is φ = 10324073776.

The previous prime is 21004150169. The next prime is 21004150241. The reversal of 21004150214 is 41205140012.

It is a happy number.

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, 89000519 + ... + 89000754.

It is an arithmetic number, because the mean of its divisors is an integer number (4005028665).

Almost surely, 2^21004150214 is an apocalyptic number.

21004150214 is a deficient number, since it is larger than the sum of its proper divisors (11036079106).

21004150214 is a wasteful number, since it uses less digits than its factorization.

21004150214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178001334.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 21004150214 its reverse (41205140012), we get a palindrome (62209290226).

The spelling of 21004150214 in words is "twenty-one billion, four million, one hundred fifty thousand, two hundred fourteen".