33030102221861 has 2 divisors, whose sum is σ = 33030102221862. Its totient is φ = 33030102221860.

The previous prime is 33030102221849. The next prime is 33030102221869. The reversal of 33030102221861 is 16812220103033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32137277550625 + 892824671236 = 5668975^2 + 944894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33030102221861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33030102221869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16515051110930 + 16515051110931.

It is an arithmetic number, because the mean of its divisors is an integer number (16515051110931).

Almost surely, 2^{33030102221861} is an apocalyptic number.

It is an amenable number.

33030102221861 is a deficient number, since it is larger than the sum of its proper divisors (1).

33030102221861 is an equidigital number, since it uses as much as digits as its factorization.

33030102221861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 33030102221861 its reverse (16812220103033), we get a palindrome (49842322324894).

The spelling of 33030102221861 in words is "thirty-three trillion, thirty billion, one hundred two million, two hundred twenty-one thousand, eight hundred sixty-one".