1111001011012 has 6 divisors (see below), whose sum is σ = 1944251769278. Its totient is φ = 555500505504.

The previous prime is 1111001011007. The next prime is 1111001011013. The reversal of 1111001011012 is 2101101001111.

It can be written as a sum of positive squares in only one way, i.e., 643823292996 + 467177718016 = 802386^2 + 683504^2 .

It is a super-2 number, since 2×1111001011012² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1111001011012.

It is not an unprimeable number, because it can be changed into a prime (1111001011013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138875126373 + ... + 138875126380.

Almost surely, 2^{1111001011012} is an apocalyptic number.

It is an amenable number.

1111001011012 is a deficient number, since it is larger than the sum of its proper divisors (833250758266).

1111001011012 is a wasteful number, since it uses less digits than its factorization.

1111001011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277750252757 (or 277750252755 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1111001011012 its reverse (2101101001111), we get a palindrome (3212102012123).

Subtracting 1111001011012 from its reverse (2101101001111), we obtain a palindrome (990099990099).

The spelling of 1111001011012 in words is "one trillion, one hundred eleven billion, one million, eleven thousand, twelve".