211222221109993 has 2 divisors, whose sum is σ = 211222221109994. Its totient is φ = 211222221109992.

The previous prime is 211222221109973. The next prime is 211222221110111. The reversal of 211222221109993 is 399901122222112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209701446269184 + 1520774840809 = 14481072^2 + 1233197^2 .

It is a cyclic number.

It is not a de Polignac number, because 211222221109993 - 2¹⁷ = 211222220978921 is a prime.

It is a super-2 number, since 2×211222221109993² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211222221109973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611110554996 + 105611110554997.

It is an arithmetic number, because the mean of its divisors is an integer number (105611110554997).

Almost surely, 2^{211222221109993} is an apocalyptic number.

It is an amenable number.

211222221109993 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222221109993 is an equidigital number, since it uses as much as digits as its factorization.

211222221109993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 211222221109993 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred nine thousand, nine hundred ninety-three".