33321212149 has 2 divisors, whose sum is σ = 33321212150. Its totient is φ = 33321212148.

The previous prime is 33321212101. The next prime is 33321212161. The reversal of 33321212149 is 94121212333.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18664477924 + 14656734225 = 136618^2 + 121065^2 .

It is a cyclic number.

It is not a de Polignac number, because 33321212149 - 2¹⁷ = 33321081077 is a prime.

It is a super-3 number, since 3×33321212149³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 33321212149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33321212179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16660606074 + 16660606075.

It is an arithmetic number, because the mean of its divisors is an integer number (16660606075).

Almost surely, 2^33321212149 is an apocalyptic number.

It is an amenable number.

33321212149 is a deficient number, since it is larger than the sum of its proper divisors (1).

33321212149 is an equidigital number, since it uses as much as digits as its factorization.

33321212149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 31.

The spelling of 33321212149 in words is "thirty-three billion, three hundred twenty-one million, two hundred twelve thousand, one hundred forty-nine".