101221000000033 has 2 divisors, whose sum is σ = 101221000000034. Its totient is φ = 101221000000032.

The previous prime is 101220999999991. The next prime is 101221000000129. The reversal of 101221000000033 is 330000000122101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57687488371984 + 43533511628049 = 7595228^2 + 6597993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101221000000033 is a prime.

It is not a weakly prime, because it can be changed into another prime (101221000000433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610500000016 + 50610500000017.

It is an arithmetic number, because the mean of its divisors is an integer number (50610500000017).

Almost surely, 2^{101221000000033} is an apocalyptic number.

It is an amenable number.

101221000000033 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221000000033 is an equidigital number, since it uses as much as digits as its factorization.

101221000000033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 101221000000033 its reverse (330000000122101), we get a palindrome (431221000122134).

The spelling of 101221000000033 in words is "one hundred one trillion, two hundred twenty-one billion, thirty-three", and thus it is an aban number.