211222220019983 has 2 divisors, whose sum is σ = 211222220019984. Its totient is φ = 211222220019982.

The previous prime is 211222220019907. The next prime is 211222220020013. The reversal of 211222220019983 is 389910022222112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211222220019983 - 2¹² = 211222220015887 is a prime.

It is a super-2 number, since 2×211222220019983² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211222220013983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611110009991 + 105611110009992.

It is an arithmetic number, because the mean of its divisors is an integer number (105611110009992).

Almost surely, 2^{211222220019983} is an apocalyptic number.

211222220019983 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222220019983 is an equidigital number, since it uses as much as digits as its factorization.

211222220019983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 211222220019983 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty million, nineteen thousand, nine hundred eighty-three".