6838221421123 has 2 divisors, whose sum is σ = 6838221421124. Its totient is φ = 6838221421122.

The previous prime is 6838221421117. The next prime is 6838221421133. The reversal of 6838221421123 is 3211241228386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6838221421123 - 2³⁷ = 6700782467651 is a prime.

It is a super-2 number, since 2×6838221421123² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6838221421123.

It is not a weakly prime, because it can be changed into another prime (6838221421133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3419110710561 + 3419110710562.

It is an arithmetic number, because the mean of its divisors is an integer number (3419110710562).

Almost surely, 2^{6838221421123} is an apocalyptic number.

6838221421123 is a deficient number, since it is larger than the sum of its proper divisors (1).

6838221421123 is an equidigital number, since it uses as much as digits as its factorization.

6838221421123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 43.

The spelling of 6838221421123 in words is "six trillion, eight hundred thirty-eight billion, two hundred twenty-one million, four hundred twenty-one thousand, one hundred twenty-three".