33240332401221 has 16 divisors (see below), whose sum is σ = 48350061365760. Its totient is φ = 20145453099120.

The previous prime is 33240332401217. The next prime is 33240332401223. The reversal of 33240332401221 is 12210423304233.

It is a happy number.

It is not a de Polignac number, because 33240332401221 - 2² = 33240332401217 is a prime.

It is a super-2 number, since 2×33240332401221² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33240332401223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1713195 + ... + 8331608.

It is an arithmetic number, because the mean of its divisors is an integer number (3021878835360).

Almost surely, 2^{33240332401221} is an apocalyptic number.

It is an amenable number.

33240332401221 is a deficient number, since it is larger than the sum of its proper divisors (15109728964539).

33240332401221 is a wasteful number, since it uses less digits than its factorization.

33240332401221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10145096.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 33240332401221 its reverse (12210423304233), we get a palindrome (45450755705454).

The spelling of 33240332401221 in words is "thirty-three trillion, two hundred forty billion, three hundred thirty-two million, four hundred one thousand, two hundred twenty-one".