211212101211953 has 2 divisors, whose sum is σ = 211212101211954. Its totient is φ = 211212101211952.

The previous prime is 211212101211931. The next prime is 211212101212033. The reversal of 211212101211953 is 359112101212112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199057757741089 + 12154343470864 = 14108783^2 + 3486308^2 .

It is a cyclic number.

It is not a de Polignac number, because 211212101211953 - 2²⁴ = 211212084434737 is a prime.

It is a super-2 number, since 2×211212101211953² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211212101214953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105606050605976 + 105606050605977.

It is an arithmetic number, because the mean of its divisors is an integer number (105606050605977).

Almost surely, 2^{211212101211953} is an apocalyptic number.

It is an amenable number.

211212101211953 is a deficient number, since it is larger than the sum of its proper divisors (1).

211212101211953 is an equidigital number, since it uses as much as digits as its factorization.

211212101211953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 32.

The spelling of 211212101211953 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred one million, two hundred eleven thousand, nine hundred fifty-three".