1001115512212 has 12 divisors (see below), whose sum is σ = 1756321107156. Its totient is φ = 499309481600.

The previous prime is 1001115512207. The next prime is 1001115512213. The reversal of 1001115512212 is 2122155111001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 791897092996 + 209218419216 = 889886^2 + 457404^2 .

It is a super-2 number, since 2×1001115512212² (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 (1001115512213) 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 3 ways as a sum of consecutive naturals, for example, 312066823 + ... + 312070030.

It is an arithmetic number, because the mean of its divisors is an integer number (146360092263).

Almost surely, 2^{1001115512212} is an apocalyptic number.

It is an amenable number.

1001115512212 is a deficient number, since it is larger than the sum of its proper divisors (755205594944).

1001115512212 is a wasteful number, since it uses less digits than its factorization.

1001115512212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624137258 (or 624137256 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 22.

The spelling of 1001115512212 in words is "one trillion, one billion, one hundred fifteen million, five hundred twelve thousand, two hundred twelve".