1331000011212 has 24 divisors (see below), whose sum is σ = 3189603631536. Its totient is φ = 431675679168.

The previous prime is 1331000011183. The next prime is 1331000011217. The reversal of 1331000011212 is 2121100001331.

It is a happy number.

It is a super-2 number, since 2×1331000011212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331000011191 and 1331000011200.

It is not an unprimeable number, because it can be changed into a prime (1331000011217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1498873443 + ... + 1498874330.

It is an arithmetic number, because the mean of its divisors is an integer number (132900151314).

Almost surely, 2^{1331000011212} is an apocalyptic number.

1331000011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331000011212 is an abundant number, since it is smaller than the sum of its proper divisors (1858603620324).

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

1331000011212 is a wasteful number, since it uses less digits than its factorization.

1331000011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997747817 (or 2997747815 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1331000011212 its reverse (2121100001331), we get a palindrome (3452100012543).

The spelling of 1331000011212 in words is "one trillion, three hundred thirty-one billion, eleven thousand, two hundred twelve".