2120211112277 has 2 divisors, whose sum is σ = 2120211112278. Its totient is φ = 2120211112276.

The previous prime is 2120211112193. The next prime is 2120211112301. The reversal of 2120211112277 is 7722111120212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2120069954116 + 141158161 = 1456046^2 + 11881^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120211112277 - 2³⁸ = 1845333205333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120211112177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060105556138 + 1060105556139.

It is an arithmetic number, because the mean of its divisors is an integer number (1060105556139).

Almost surely, 2^{2120211112277} is an apocalyptic number.

It is an amenable number.

2120211112277 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120211112277 is an equidigital number, since it uses as much as digits as its factorization.

2120211112277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 29.

Adding to 2120211112277 its reverse (7722111120212), we get a palindrome (9842322232489).

The spelling of 2120211112277 in words is "two trillion, one hundred twenty billion, two hundred eleven million, one hundred twelve thousand, two hundred seventy-seven".