211221210001033 has 2 divisors, whose sum is σ = 211221210001034. Its totient is φ = 211221210001032.

The previous prime is 211221210001003. The next prime is 211221210001037. The reversal of 211221210001033 is 330100012122112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211219366758544 + 1843242489 = 14533388^2 + 42933^2 .

It is a cyclic number.

It is not a de Polignac number, because 211221210001033 - 2³⁷ = 211083771047561 is a prime.

It is a super-2 number, since 2×211221210001033² (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 211221210001033.

It is not a weakly prime, because it can be changed into another prime (211221210001037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105610605000516 + 105610605000517.

It is an arithmetic number, because the mean of its divisors is an integer number (105610605000517).

Almost surely, 2^{211221210001033} is an apocalyptic number.

It is an amenable number.

211221210001033 is a deficient number, since it is larger than the sum of its proper divisors (1).

211221210001033 is an equidigital number, since it uses as much as digits as its factorization.

211221210001033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 211221210001033 its reverse (330100012122112), we get a palindrome (541321222123145).

The spelling of 211221210001033 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred ten million, one thousand, thirty-three".