211122019113997 has 2 divisors, whose sum is σ = 211122019113998. Its totient is φ = 211122019113996.

The previous prime is 211122019113947. The next prime is 211122019114037. The reversal of 211122019113997 is 799311910221112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195150534397641 + 15971484716356 = 13969629^2 + 3996434^2 .

It is a cyclic number.

It is not a de Polignac number, because 211122019113997 - 2³⁹ = 210572263300109 is a prime.

It is a super-2 number, since 2×211122019113997² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211122019113997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211122019113947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561009556998 + 105561009556999.

It is an arithmetic number, because the mean of its divisors is an integer number (105561009556999).

Almost surely, 2^{211122019113997} is an apocalyptic number.

It is an amenable number.

211122019113997 is a deficient number, since it is larger than the sum of its proper divisors (1).

211122019113997 is an equidigital number, since it uses as much as digits as its factorization.

211122019113997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 49.

The spelling of 211122019113997 in words is "two hundred eleven trillion, one hundred twenty-two billion, nineteen million, one hundred thirteen thousand, nine hundred ninety-seven".