13212220340040 has 32 divisors (see below), whose sum is σ = 39636661020480. Its totient is φ = 3523258757312.

The previous prime is 13212220340003. The next prime is 13212220340093. The reversal of 13212220340040 is 4004302221231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55050917964 + ... + 55050918203.

It is an arithmetic number, because the mean of its divisors is an integer number (1238645656890).

Almost surely, 2^{13212220340040} is an apocalyptic number.

13212220340040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212220340040 is an abundant number, since it is smaller than the sum of its proper divisors (26424440680440).

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

13212220340040 is a wasteful number, since it uses less digits than its factorization.

13212220340040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110101836181 (or 110101836177 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13212220340040 its reverse (4004302221231), we get a palindrome (17216522561271).

The spelling of 13212220340040 in words is "thirteen trillion, two hundred twelve billion, two hundred twenty million, three hundred forty thousand, forty".