13012221033 has 24 divisors (see below), whose sum is σ = 22221201600. Its totient is φ = 7179155424.

The previous prime is 13012221031. The next prime is 13012221097. The reversal of 13012221033 is 33012221031.

It is not a de Polignac number, because 13012221033 - 2¹ = 13012221031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13012220997 and 13012221015.

It is not an unprimeable number, because it can be changed into a prime (13012221031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3559263 + ... + 3562916.

It is an arithmetic number, because the mean of its divisors is an integer number (925883400).

Almost surely, 2^13012221033 is an apocalyptic number.

It is an amenable number.

13012221033 is a deficient number, since it is larger than the sum of its proper divisors (9208980567).

13012221033 is a wasteful number, since it uses less digits than its factorization.

13012221033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122221 (or 7122218 counting only the distinct ones).

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

Adding to 13012221033 its reverse (33012221031), we get a palindrome (46024442064).

The spelling of 13012221033 in words is "thirteen billion, twelve million, two hundred twenty-one thousand, thirty-three".