33220123223021 has 48 divisors (see below), whose sum is σ = 40489399699200. Its totient is φ = 27139810658688.

The previous prime is 33220123223011. The next prime is 33220123223069. The reversal of 33220123223021 is 12032232102233.

It is not a de Polignac number, because 33220123223021 - 2¹⁰ = 33220123221997 is a prime.

It is a super-2 number, since 2×33220123223021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33220123223011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 745040690 + ... + 745085276.

It is an arithmetic number, because the mean of its divisors is an integer number (843529160400).

Almost surely, 2^{33220123223021} is an apocalyptic number.

It is an amenable number.

33220123223021 is a deficient number, since it is larger than the sum of its proper divisors (7269276476179).

33220123223021 is a wasteful number, since it uses less digits than its factorization.

33220123223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51346 (or 51339 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 33220123223021 its reverse (12032232102233), we get a palindrome (45252355325254).

The spelling of 33220123223021 in words is "thirty-three trillion, two hundred twenty billion, one hundred twenty-three million, two hundred twenty-three thousand, twenty-one".