2100220020047 has 2 divisors, whose sum is σ = 2100220020048. Its totient is φ = 2100220020046.

The previous prime is 2100220019981. The next prime is 2100220020097. The reversal of 2100220020047 is 7400200220012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100220020047 - 2⁸ = 2100220019791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100220020097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050110010023 + 1050110010024.

It is an arithmetic number, because the mean of its divisors is an integer number (1050110010024).

Almost surely, 2^{2100220020047} is an apocalyptic number.

2100220020047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100220020047 is an equidigital number, since it uses as much as digits as its factorization.

2100220020047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

Adding to 2100220020047 its reverse (7400200220012), we get a palindrome (9500420240059).

The spelling of 2100220020047 in words is "two trillion, one hundred billion, two hundred twenty million, twenty thousand, forty-seven".