13001111112220 has 96 divisors (see below), whose sum is σ = 34041960046080. Its totient is φ = 4051974455040.

The previous prime is 13001111112161. The next prime is 13001111112221. The reversal of 13001111112220 is 2221111110031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13001111112194 and 13001111112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001111112221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19565391 + ... + 20218969.

It is an arithmetic number, because the mean of its divisors is an integer number (354603750480).

Almost surely, 2^{13001111112220} is an apocalyptic number.

13001111112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13001111112220 is an abundant number, since it is smaller than the sum of its proper divisors (21040848933860).

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

13001111112220 is a wasteful number, since it uses less digits than its factorization.

13001111112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666523 (or 666521 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 13001111112220 its reverse (2221111110031), we get a palindrome (15222222222251).

The spelling of 13001111112220 in words is "thirteen trillion, one billion, one hundred eleven million, one hundred twelve thousand, two hundred twenty".