30033332112221 has 4 divisors (see below), whose sum is σ = 30033587093244. Its totient is φ = 30033077131200.

The previous prime is 30033332112209. The next prime is 30033332112253. The reversal of 30033332112221 is 12221123333003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7474679448196 + 22558652664025 = 2733986^2 + 4749595^2 .

It is a cyclic number.

It is not a de Polignac number, because 30033332112221 - 2¹⁸ = 30033331850077 is a prime.

It is a super-2 number, since 2×30033332112221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30033332112521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127313750 + ... + 127549431.

It is an arithmetic number, because the mean of its divisors is an integer number (7508396773311).

Almost surely, 2^{30033332112221} is an apocalyptic number.

It is an amenable number.

30033332112221 is a deficient number, since it is larger than the sum of its proper divisors (254981023).

30033332112221 is a wasteful number, since it uses less digits than its factorization.

30033332112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254981022.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 30033332112221 its reverse (12221123333003), we get a palindrome (42254455445224).

The spelling of 30033332112221 in words is "thirty trillion, thirty-three billion, three hundred thirty-two million, one hundred twelve thousand, two hundred twenty-one".