33221121101 has 4 divisors (see below), whose sum is σ = 37966995552. Its totient is φ = 28475246652.

The previous prime is 33221121079. The next prime is 33221121119. The reversal of 33221121101 is 10112112233.

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: 10112112233 = 21089 ⋅479497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33221121101 is a prime.

It is a super-2 number, since 2×33221121101² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33221121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33221121181) 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, 2372937215 + ... + 2372937228.

It is an arithmetic number, because the mean of its divisors is an integer number (9491748888).

Almost surely, 2^33221121101 is an apocalyptic number.

It is an amenable number.

33221121101 is a deficient number, since it is larger than the sum of its proper divisors (4745874451).

33221121101 is an equidigital number, since it uses as much as digits as its factorization.

33221121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745874450.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 33221121101 its reverse (10112112233), we get a palindrome (43333233334).

The spelling of 33221121101 in words is "thirty-three billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred one".