11011211000012 has 24 divisors (see below), whose sum is σ = 19559294540016. Its totient is φ = 5422858518528.

The previous prime is 11011210999973. The next prime is 11011211000039. The reversal of 11011211000012 is 21000011211011.

It is a junction number, because it is equal to n+sod(n) for n = 11011210999957 and 11011211000002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370148 + ... + 4707380.

It is an arithmetic number, because the mean of its divisors is an integer number (814970605834).

Almost surely, 2^{11011211000012} is an apocalyptic number.

It is an amenable number.

11011211000012 is a deficient number, since it is larger than the sum of its proper divisors (8548083540004).

11011211000012 is a wasteful number, since it uses less digits than its factorization.

11011211000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346777 (or 4346775 counting only the distinct ones).

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

Adding to 11011211000012 its reverse (21000011211011), we get a palindrome (32011222211023).

The spelling of 11011211000012 in words is "eleven trillion, eleven billion, two hundred eleven million, twelve", and thus it is an aban number.