21034140014402 has 16 divisors (see below), whose sum is σ = 33212191406400. Its totient is φ = 9963422591760.

The previous prime is 21034140014333. The next prime is 21034140014417. The reversal of 21034140014402 is 20441004143012.

It is a super-2 number, since 2×21034140014402² (a number of 27 digits) contains 22 as substring.

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, 49124 + ... + 6486192.

It is an arithmetic number, because the mean of its divisors is an integer number (2075761962900).

Almost surely, 2^{21034140014402} is an apocalyptic number.

21034140014402 is a deficient number, since it is larger than the sum of its proper divisors (12178051391998).

21034140014402 is a wasteful number, since it uses less digits than its factorization.

21034140014402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6523081.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 21034140014402 its reverse (20441004143012), we get a palindrome (41475144157414).

The spelling of 21034140014402 in words is "twenty-one trillion, thirty-four billion, one hundred forty million, fourteen thousand, four hundred two".