13033111220 has 24 divisors (see below), whose sum is σ = 27371678208. Its totient is φ = 5212836000.

The previous prime is 13033111177. The next prime is 13033111243. The reversal of 13033111220 is 2211133031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489245 + ... + 515195.

It is an arithmetic number, because the mean of its divisors is an integer number (1140486592).

Almost surely, 2^13033111220 is an apocalyptic number.

13033111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13033111220 is an abundant number, since it is smaller than the sum of its proper divisors (14338566988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13033111220 is a wasteful number, since it uses less digits than its factorization.

13033111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51071 (or 51069 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13033111220 its reverse (2211133031), we get a palindrome (15244244251).

The spelling of 13033111220 in words is "thirteen billion, thirty-three million, one hundred eleven thousand, two hundred twenty".