2100122000047 has 2 divisors, whose sum is σ = 2100122000048. Its totient is φ = 2100122000046.

The previous prime is 2100122000003. The next prime is 2100122000051. The reversal of 2100122000047 is 7400002210012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100122000047 - 2¹⁹ = 2100121475759 is a prime.

It is a super-2 number, since 2×2100122000047² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2100121999988 and 2100122000033.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100162000047) by changing a digit.

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 as a sum of consecutive naturals, namely, 1050061000023 + 1050061000024.

It is an arithmetic number, because the mean of its divisors is an integer number (1050061000024).

Almost surely, 2^{2100122000047} is an apocalyptic number.

2100122000047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100122000047 is an equidigital number, since it uses as much as digits as its factorization.

2100122000047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

Adding to 2100122000047 its reverse (7400002210012), we get a palindrome (9500124210059).

The spelling of 2100122000047 in words is "two trillion, one hundred billion, one hundred twenty-two million, forty-seven", and thus it is an aban number.