33421344401 has 4 divisors (see below), whose sum is σ = 33454143600. Its totient is φ = 33388545204.

The previous prime is 33421344389. The next prime is 33421344433. The reversal of 33421344401 is 10444312433.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33421344401 is a prime.

It is a super-2 number, since 2×33421344401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33421344461) 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, 16398071 + ... + 16400108.

It is an arithmetic number, because the mean of its divisors is an integer number (8363535900).

Almost surely, 2^33421344401 is an apocalyptic number.

It is an amenable number.

33421344401 is a deficient number, since it is larger than the sum of its proper divisors (32799199).

33421344401 is a wasteful number, since it uses less digits than its factorization.

33421344401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32799198.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 33421344401 its reverse (10444312433), we get a palindrome (43865656834).

The spelling of 33421344401 in words is "thirty-three billion, four hundred twenty-one million, three hundred forty-four thousand, four hundred one".