33133150421 has 16 divisors (see below), whose sum is σ = 38505974400. Its totient is φ = 27923774208.

The previous prime is 33133150417. The next prime is 33133150423. The reversal of 33133150421 is 12405133133.

It is not a de Polignac number, because 33133150421 - 2² = 33133150417 is a prime.

It is a super-2 number, since 2×33133150421² (a number of 22 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 (33133150423) 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, 37040 + ... + 260073.

It is an arithmetic number, because the mean of its divisors is an integer number (2406623400).

Almost surely, 2^33133150421 is an apocalyptic number.

It is an amenable number.

33133150421 is a deficient number, since it is larger than the sum of its proper divisors (5372823979).

33133150421 is a wasteful number, since it uses less digits than its factorization.

33133150421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297388.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 33133150421 its reverse (12405133133), we get a palindrome (45538283554).

The spelling of 33133150421 in words is "thirty-three billion, one hundred thirty-three million, one hundred fifty thousand, four hundred twenty-one".