1000001001212 has 12 divisors (see below), whose sum is σ = 1767328502856. Its totient is φ = 495050000400.

The previous prime is 1000001001193. The next prime is 1000001001239. The reversal of 1000001001212 is 2121001000001.

It is a self number, because there is not a number n which added to its sum of digits gives 1000001001212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1237624598 + ... + 1237625405.

It is an arithmetic number, because the mean of its divisors is an integer number (147277375238).

Almost surely, 2^{1000001001212} is an apocalyptic number.

It is an amenable number.

1000001001212 is a deficient number, since it is larger than the sum of its proper divisors (767327501644).

1000001001212 is a wasteful number, since it uses less digits than its factorization.

1000001001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475250108 (or 2475250106 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1000001001212 its reverse (2121001000001), we get a palindrome (3121002001213).

The spelling of 1000001001212 in words is "one trillion, one million, one thousand, two hundred twelve".