2121146280277 has 2 divisors, whose sum is σ = 2121146280278. Its totient is φ = 2121146280276.

The previous prime is 2121146280257. The next prime is 2121146280311. The reversal of 2121146280277 is 7720826411212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1434458940721 + 686687339556 = 1197689^2 + 828666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121146280277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121146280247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060573140138 + 1060573140139.

It is an arithmetic number, because the mean of its divisors is an integer number (1060573140139).

Almost surely, 2^{2121146280277} is an apocalyptic number.

It is an amenable number.

2121146280277 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121146280277 is an equidigital number, since it uses as much as digits as its factorization.

2121146280277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 2121146280277 in words is "two trillion, one hundred twenty-one billion, one hundred forty-six million, two hundred eighty thousand, two hundred seventy-seven".