21002114 has 8 divisors (see below), whose sum is σ = 36003648. Its totient is φ = 9000900.

The previous prime is 21002101. The next prime is 21002129. The reversal of 21002114 is 41120012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21002095 and 21002104.

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, 750062 + ... + 750089.

It is an arithmetic number, because the mean of its divisors is an integer number (4500456).

Almost surely, 2^21002114 is an apocalyptic number.

21002114 is a deficient number, since it is larger than the sum of its proper divisors (15001534).

21002114 is a wasteful number, since it uses less digits than its factorization.

21002114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500160.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 21002114 is about 4582.8063454613. The cubic root of 21002114 is about 275.9016750508.

Adding to 21002114 its reverse (41120012), we get a palindrome (62122126).

The spelling of 21002114 in words is "twenty-one million, two thousand, one hundred fourteen".