33221300197 has 2 divisors, whose sum is σ = 33221300198. Its totient is φ = 33221300196.

The previous prime is 33221300183. The next prime is 33221300237. The reversal of 33221300197 is 79100312233.

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., 31815500161 + 1405800036 = 178369^2 + 37494^2 .

It is a cyclic number.

It is not a de Polignac number, because 33221300197 - 2¹⁹ = 33220775909 is a prime.

It is a super-2 number, since 2×33221300197² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33221300797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16610650098 + 16610650099.

It is an arithmetic number, because the mean of its divisors is an integer number (16610650099).

Almost surely, 2^33221300197 is an apocalyptic number.

It is an amenable number.

33221300197 is a deficient number, since it is larger than the sum of its proper divisors (1).

33221300197 is an equidigital number, since it uses as much as digits as its factorization.

33221300197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 31.

The spelling of 33221300197 in words is "thirty-three billion, two hundred twenty-one million, three hundred thousand, one hundred ninety-seven".