2120001211267 has 2 divisors, whose sum is σ = 2120001211268. Its totient is φ = 2120001211266.

The previous prime is 2120001211061. The next prime is 2120001211277. The reversal of 2120001211267 is 7621121000212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120001211267 - 2¹⁵ = 2120001178499 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120001211277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060000605633 + 1060000605634.

It is an arithmetic number, because the mean of its divisors is an integer number (1060000605634).

Almost surely, 2^{2120001211267} is an apocalyptic number.

2120001211267 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120001211267 is an equidigital number, since it uses as much as digits as its factorization.

2120001211267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 2120001211267 its reverse (7621121000212), we get a palindrome (9741122211479).

The spelling of 2120001211267 in words is "two trillion, one hundred twenty billion, one million, two hundred eleven thousand, two hundred sixty-seven".