33220002061 has 2 divisors, whose sum is σ = 33220002062. Its totient is φ = 33220002060.

The previous prime is 33220001981. The next prime is 33220002083. The reversal of 33220002061 is 16020002233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31327230025 + 1892772036 = 176995^2 + 43506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33220002061 is a prime.

It is a super-2 number, since 2×33220002061² (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 (33220002161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16610001030 + 16610001031.

It is an arithmetic number, because the mean of its divisors is an integer number (16610001031).

Almost surely, 2^33220002061 is an apocalyptic number.

It is an amenable number.

33220002061 is a deficient number, since it is larger than the sum of its proper divisors (1).

33220002061 is an equidigital number, since it uses as much as digits as its factorization.

33220002061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 33220002061 its reverse (16020002233), we get a palindrome (49240004294).

The spelling of 33220002061 in words is "thirty-three billion, two hundred twenty million, two thousand, sixty-one".