21141504214 has 4 divisors (see below), whose sum is σ = 31712256324. Its totient is φ = 10570752106.

The previous prime is 21141504211. The next prime is 21141504221. The reversal of 21141504214 is 41240514112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141504211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5285376052 + ... + 5285376055.

It is an arithmetic number, because the mean of its divisors is an integer number (7928064081).

Almost surely, 2^21141504214 is an apocalyptic number.

21141504214 is a deficient number, since it is larger than the sum of its proper divisors (10570752110).

21141504214 is a wasteful number, since it uses less digits than its factorization.

21141504214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10570752109.

The product of its (nonzero) digits is 1280, while the sum is 25.

The spelling of 21141504214 in words is "twenty-one billion, one hundred forty-one million, five hundred four thousand, two hundred fourteen".