21011113101214 has 32 divisors (see below), whose sum is σ = 31842958920192. Its totient is φ = 10396993464000.

The previous prime is 21011113101137. The next prime is 21011113101233. The reversal of 21011113101214 is 41210131111012.

It is a junction number, because it is equal to n+sod(n) for n = 21011113101191 and 21011113101200.

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, 1857576619 + ... + 1857587929.

It is an arithmetic number, because the mean of its divisors is an integer number (995092466256).

Almost surely, 2^{21011113101214} is an apocalyptic number.

21011113101214 is a deficient number, since it is larger than the sum of its proper divisors (10831845818978).

21011113101214 is a wasteful number, since it uses less digits than its factorization.

21011113101214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19312.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 21011113101214 its reverse (41210131111012), we get a palindrome (62221244212226).

The spelling of 21011113101214 in words is "twenty-one trillion, eleven billion, one hundred thirteen million, one hundred one thousand, two hundred fourteen".