1351112355220 has 24 divisors (see below), whose sum is σ = 2837385500544. Its totient is φ = 540435503136.

The previous prime is 1351112355199. The next prime is 1351112355223. The reversal of 1351112355220 is 225532111531.

It is a happy number.

It is a super-2 number, since 2×1351112355220² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351112355223) by changing a digit.

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, 647097 + ... + 1766623.

It is an arithmetic number, because the mean of its divisors is an integer number (118224395856).

Almost surely, 2^{1351112355220} is an apocalyptic number.

1351112355220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351112355220 is an abundant number, since it is smaller than the sum of its proper divisors (1486273145324).

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

1351112355220 is a wasteful number, since it uses less digits than its factorization.

1351112355220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179879 (or 1179877 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 1351112355220 its reverse (225532111531), we get a palindrome (1576644466751).

The spelling of 1351112355220 in words is "one trillion, three hundred fifty-one billion, one hundred twelve million, three hundred fifty-five thousand, two hundred twenty".