1212011100011 has 12 divisors (see below), whose sum is σ = 1249306322232. Its totient is φ = 1175725833408.

The previous prime is 1212011100007. The next prime is 1212011100019. The reversal of 1212011100011 is 1100011102121.

It is not a de Polignac number, because 1212011100011 - 2² = 1212011100007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212011099965 and 1212011100001.

It is not an unprimeable number, because it can be changed into a prime (1212011100019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2178125 + ... + 2677358.

It is an arithmetic number, because the mean of its divisors is an integer number (104108860186).

Almost surely, 2^{1212011100011} is an apocalyptic number.

1212011100011 is a deficient number, since it is larger than the sum of its proper divisors (37295222221).

1212011100011 is an equidigital number, since it uses as much as digits as its factorization.

1212011100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855690 (or 4855643 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1212011100011 its reverse (1100011102121), we get a palindrome (2312022202132).

The spelling of 1212011100011 in words is "one trillion, two hundred twelve billion, eleven million, one hundred thousand, eleven".