33220212013 has 2 divisors, whose sum is σ = 33220212014. Its totient is φ = 33220212012.

The previous prime is 33220211957. The next prime is 33220212049. The reversal of 33220212013 is 31021202233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32935716324 + 284495689 = 181482^2 + 16867^2 .

It is a cyclic number.

It is not a de Polignac number, because 33220212013 - 2²¹ = 33218114861 is a prime.

It is a super-2 number, since 2×33220212013² (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 (33220212413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16610106006 + 16610106007.

It is an arithmetic number, because the mean of its divisors is an integer number (16610106007).

Almost surely, 2^33220212013 is an apocalyptic number.

It is an amenable number.

33220212013 is a deficient number, since it is larger than the sum of its proper divisors (1).

33220212013 is an equidigital number, since it uses as much as digits as its factorization.

33220212013 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 33220212013 its reverse (31021202233), we get a palindrome (64241414246).

The spelling of 33220212013 in words is "thirty-three billion, two hundred twenty million, two hundred twelve thousand, thirteen".