21104150214 has 32 divisors (see below), whose sum is σ = 48244227840. Its totient is φ = 6028985952.

The previous prime is 21104150191. The next prime is 21104150233. The reversal of 21104150214 is 41205140112.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354997 + ... + 410159.

It is an arithmetic number, because the mean of its divisors is an integer number (1507632120).

Almost surely, 2^21104150214 is an apocalyptic number.

21104150214 is an abundant number, since it is smaller than the sum of its proper divisors (27140077626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21104150214 is a wasteful number, since it uses less digits than its factorization.

21104150214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64284.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 21104150214 its reverse (41205140112), we get a palindrome (62309290326).

The spelling of 21104150214 in words is "twenty-one billion, one hundred four million, one hundred fifty thousand, two hundred fourteen".