21002141545214 has 8 divisors (see below), whose sum is σ = 31524893817240. Its totient is φ = 10493843606136.

The previous prime is 21002141545199. The next prime is 21002141545223. The reversal of 21002141545214 is 41254514120012.

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, 3613579604 + ... + 3613585415.

It is an arithmetic number, because the mean of its divisors is an integer number (3940611727155).

Almost surely, 2^{21002141545214} is an apocalyptic number.

21002141545214 is a deficient number, since it is larger than the sum of its proper divisors (10522752272026).

21002141545214 is a wasteful number, since it uses less digits than its factorization.

21002141545214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227166474.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 21002141545214 its reverse (41254514120012), we get a palindrome (62256655665226).

The spelling of 21002141545214 in words is "twenty-one trillion, two billion, one hundred forty-one million, five hundred forty-five thousand, two hundred fourteen".