11012121004044 has 48 divisors (see below), whose sum is σ = 25719194454912. Its totient is φ = 3667244710272.

The previous prime is 11012121004009. The next prime is 11012121004061. The reversal of 11012121004044 is 44040012121011.

It is a self number, because there is not a number n which added to its sum of digits gives 11012121004044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67596832 + ... + 67759544.

It is an arithmetic number, because the mean of its divisors is an integer number (535816551144).

Almost surely, 2^{11012121004044} is an apocalyptic number.

It is an amenable number.

11012121004044 is an abundant number, since it is smaller than the sum of its proper divisors (14707073450868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11012121004044 is a wasteful number, since it uses less digits than its factorization.

11012121004044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168006 (or 168004 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11012121004044 its reverse (44040012121011), we get a palindrome (55052133125055).

The spelling of 11012121004044 in words is "eleven trillion, twelve billion, one hundred twenty-one million, four thousand, forty-four".