33500121401 has 4 divisors (see below), whose sum is σ = 33528730704. Its totient is φ = 33471512100.

The previous prime is 33500121397. The next prime is 33500121407. The reversal of 33500121401 is 10412100533.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10412100533 = 68213 ⋅152641.

It is a cyclic number.

It is not a de Polignac number, because 33500121401 - 2² = 33500121397 is a prime.

It is a super-2 number, since 2×33500121401² (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 (33500121407) 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, 14302895 + ... + 14305236.

It is an arithmetic number, because the mean of its divisors is an integer number (8382182676).

Almost surely, 2^33500121401 is an apocalyptic number.

It is an amenable number.

33500121401 is a deficient number, since it is larger than the sum of its proper divisors (28609303).

33500121401 is a wasteful number, since it uses less digits than its factorization.

33500121401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28609302.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 33500121401 its reverse (10412100533), we get a palindrome (43912221934).

The spelling of 33500121401 in words is "thirty-three billion, five hundred million, one hundred twenty-one thousand, four hundred one".