13220121033 has 36 divisors (see below), whose sum is σ = 22813860160. Its totient is φ = 7225886448.

The previous prime is 13220121029. The next prime is 13220121049. The reversal of 13220121033 is 33012102231.

It is not a de Polignac number, because 13220121033 - 2² = 13220121029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13220120997 and 13220121015.

It is not an unprimeable number, because it can be changed into a prime (13220121023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 165013 + ... + 231666.

Almost surely, 2^13220121033 is an apocalyptic number.

It is an amenable number.

13220121033 is a deficient number, since it is larger than the sum of its proper divisors (9593739127).

13220121033 is a wasteful number, since it uses less digits than its factorization.

13220121033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396738 (or 396712 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13220121033 its reverse (33012102231), we get a palindrome (46232223264).

The spelling of 13220121033 in words is "thirteen billion, two hundred twenty million, one hundred twenty-one thousand, thirty-three".