21114403401012 has 24 divisors (see below), whose sum is σ = 49483976258976. Its totient is φ = 7007129468448.

The previous prime is 21114403400983. The next prime is 21114403401037. The reversal of 21114403401012 is 21010430441112.

It is a happy number.

It is a super-2 number, since 2×21114403401012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3875621983 + ... + 3875627430.

It is an arithmetic number, because the mean of its divisors is an integer number (2061832344124).

Almost surely, 2^{21114403401012} is an apocalyptic number.

It is an amenable number.

21114403401012 is an abundant number, since it is smaller than the sum of its proper divisors (28369572857964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21114403401012 is a wasteful number, since it uses less digits than its factorization.

21114403401012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7751249647 (or 7751249645 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 21114403401012 its reverse (21010430441112), we get a palindrome (42124833842124).

The spelling of 21114403401012 in words is "twenty-one trillion, one hundred fourteen billion, four hundred three million, four hundred one thousand, twelve".