21114012121144 has 16 divisors (see below), whose sum is σ = 39589645849200. Its totient is φ = 10556773228032.

The previous prime is 21114012121133. The next prime is 21114012121201. The reversal of 21114012121144 is 44112121041112.

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 3 ways as a sum of consecutive naturals, for example, 28718364 + ... + 29444395.

It is an arithmetic number, because the mean of its divisors is an integer number (2474352865575).

Almost surely, 2^{21114012121144} is an apocalyptic number.

It is an amenable number.

21114012121144 is a deficient number, since it is larger than the sum of its proper divisors (18475633728056).

21114012121144 is a wasteful number, since it uses less digits than its factorization.

21114012121144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58208142 (or 58208138 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

Adding to 21114012121144 its reverse (44112121041112), we get a palindrome (65226133162256).

The spelling of 21114012121144 in words is "twenty-one trillion, one hundred fourteen billion, twelve million, one hundred twenty-one thousand, one hundred forty-four".