2112200120977 has 2 divisors, whose sum is σ = 2112200120978. Its totient is φ = 2112200120976.

The previous prime is 2112200120959. The next prime is 2112200121001. The reversal of 2112200120977 is 7790210022112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1283233574401 + 828966546576 = 1132799^2 + 910476^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112200120977 - 2¹¹ = 2112200118929 is a prime.

It is a super-2 number, since 2×2112200120977² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2112200120917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056100060488 + 1056100060489.

It is an arithmetic number, because the mean of its divisors is an integer number (1056100060489).

Almost surely, 2^{2112200120977} is an apocalyptic number.

It is an amenable number.

2112200120977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112200120977 is an equidigital number, since it uses as much as digits as its factorization.

2112200120977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 2112200120977 in words is "two trillion, one hundred twelve billion, two hundred million, one hundred twenty thousand, nine hundred seventy-seven".