1100001212 has 12 divisors (see below), whose sum is σ = 1942038336. Its totient is φ = 545133120.

The previous prime is 1100001211. The next prime is 1100001239. The reversal of 1100001212 is 2121000011.

It is a self number, because there is not a number n which added to its sum of digits gives 1100001212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100001211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1216364 + ... + 1217267.

It is an arithmetic number, because the mean of its divisors is an integer number (161836528).

Almost surely, 2^1100001212 is an apocalyptic number.

It is an amenable number.

1100001212 is a deficient number, since it is larger than the sum of its proper divisors (842037124).

1100001212 is a wasteful number, since it uses less digits than its factorization.

1100001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433748 (or 2433746 counting only the distinct ones).

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

The square root of 1100001212 is about 33166.2661751364. The cubic root of 1100001212 is about 1032.2804945846.

Adding to 1100001212 its reverse (2121000011), we get a palindrome (3221001223).

The spelling of 1100001212 in words is "one billion, one hundred million, one thousand, two hundred twelve".