10111001111012 has 12 divisors (see below), whose sum is σ = 18735090294060. Its totient is φ = 4758118169856.

The previous prime is 10111001110963. The next prime is 10111001111023. The reversal of 10111001111012 is 21011110011101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4126000937536 + 5985000173476 = 2031256^2 + 2446426^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10111001110984 and 10111001111002.

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, 74345596337 + ... + 74345596472.

It is an arithmetic number, because the mean of its divisors is an integer number (1561257524505).

Almost surely, 2^{10111001111012} is an apocalyptic number.

It is an amenable number.

10111001111012 is a deficient number, since it is larger than the sum of its proper divisors (8624089183048).

10111001111012 is a wasteful number, since it uses less digits than its factorization.

10111001111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148691192830 (or 148691192828 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 10111001111012 its reverse (21011110011101), we get a palindrome (31122111122113).

The spelling of 10111001111012 in words is "ten trillion, one hundred eleven billion, one million, one hundred eleven thousand, twelve".