2120001211277 has 2 divisors, whose sum is σ = 2120001211278. Its totient is φ = 2120001211276.

The previous prime is 2120001211267. The next prime is 2120001211283. The reversal of 2120001211277 is 7721121000212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1979271941956 + 140729269321 = 1406866^2 + 375139^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120001211277 - 2¹⁰ = 2120001210253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120001211267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060000605638 + 1060000605639.

It is an arithmetic number, because the mean of its divisors is an integer number (1060000605639).

Almost surely, 2^{2120001211277} is an apocalyptic number.

It is an amenable number.

2120001211277 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120001211277 is an equidigital number, since it uses as much as digits as its factorization.

2120001211277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 26.

Adding to 2120001211277 its reverse (7721121000212), we get a palindrome (9841122211489).

The spelling of 2120001211277 in words is "two trillion, one hundred twenty billion, one million, two hundred eleven thousand, two hundred seventy-seven".