2220120999871 has 2 divisors, whose sum is σ = 2220120999872. Its totient is φ = 2220120999870.

The previous prime is 2220120999821. The next prime is 2220121000007. The reversal of 2220120999871 is 1789990210222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2220120999871 - 2⁷ = 2220120999743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220120999821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110060499935 + 1110060499936.

It is an arithmetic number, because the mean of its divisors is an integer number (1110060499936).

Almost surely, 2^{2220120999871} is an apocalyptic number.

2220120999871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220120999871 is an equidigital number, since it uses as much as digits as its factorization.

2220120999871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 52.

The spelling of 2220120999871 in words is "two trillion, two hundred twenty billion, one hundred twenty million, nine hundred ninety-nine thousand, eight hundred seventy-one".