21213140111614 has 72 divisors (see below), whose sum is σ = 37278569830824. Its totient is φ = 9044397252000.

The previous prime is 21213140111599. The next prime is 21213140111623. The reversal of 21213140111614 is 41611104131212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7621489 + ... + 10025635.

It is an arithmetic number, because the mean of its divisors is an integer number (517757914317).

Almost surely, 2^{21213140111614} is an apocalyptic number.

21213140111614 is a deficient number, since it is larger than the sum of its proper divisors (16065429719210).

21213140111614 is a wasteful number, since it uses less digits than its factorization.

21213140111614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404310 (or 2404280 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 21213140111614 its reverse (41611104131212), we get a palindrome (62824244242826).

The spelling of 21213140111614 in words is "twenty-one trillion, two hundred thirteen billion, one hundred forty million, one hundred eleven thousand, six hundred fourteen".