21124314140012 has 12 divisors (see below), whose sum is σ = 36979722156720. Its totient is φ = 10558679238096.

The previous prime is 21124314140009. The next prime is 21124314140021. The reversal of 21124314140012 is 21004141342112.

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, 869444312 + ... + 869468607.

It is an arithmetic number, because the mean of its divisors is an integer number (3081643513060).

Almost surely, 2^{21124314140012} is an apocalyptic number.

It is an amenable number.

21124314140012 is a deficient number, since it is larger than the sum of its proper divisors (15855408016708).

21124314140012 is a wasteful number, since it uses less digits than its factorization.

21124314140012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738915960 (or 1738915958 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 21124314140012 its reverse (21004141342112), we get a palindrome (42128455482124).

The spelling of 21124314140012 in words is "twenty-one trillion, one hundred twenty-four billion, three hundred fourteen million, one hundred forty thousand, twelve".