33422012021 has 2 divisors, whose sum is σ = 33422012022. Its totient is φ = 33422012020.

The previous prime is 33422012003. The next prime is 33422012027. The reversal of 33422012021 is 12021022433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29176056100 + 4245955921 = 170810^2 + 65161^2 .

It is a cyclic number.

It is not a de Polignac number, because 33422012021 - 2¹⁴ = 33421995637 is a prime.

It is a super-2 number, since 2×33422012021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33422011984 and 33422012002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33422012027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16711006010 + 16711006011.

It is an arithmetic number, because the mean of its divisors is an integer number (16711006011).

Almost surely, 2^33422012021 is an apocalyptic number.

It is an amenable number.

33422012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

33422012021 is an equidigital number, since it uses as much as digits as its factorization.

33422012021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 33422012021 its reverse (12021022433), we get a palindrome (45443034454).

The spelling of 33422012021 in words is "thirty-three billion, four hundred twenty-two million, twelve thousand, twenty-one".