11121011012 has 12 divisors (see below), whose sum is σ = 19465966716. Its totient is φ = 5559306240.

The previous prime is 11121010939. The next prime is 11121011107. The reversal of 11121011012 is 21011012111.

It can be written as a sum of positive squares in 2 ways, for example, as 10762817536 + 358193476 = 103744^2 + 18926^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11121010984 and 11121011002.

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, 278789 + ... + 316172.

It is an arithmetic number, because the mean of its divisors is an integer number (1622163893).

Almost surely, 2^11121011012 is an apocalyptic number.

It is an amenable number.

11121011012 is a deficient number, since it is larger than the sum of its proper divisors (8344955704).

11121011012 is a wasteful number, since it uses less digits than its factorization.

11121011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599638 (or 599636 counting only the distinct ones).

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

Adding to 11121011012 its reverse (21011012111), we get a palindrome (32132023123).

It can be divided in two parts, 111 and 21011012, that multiplied together give a palindrome (2332222332).

The spelling of 11121011012 in words is "eleven billion, one hundred twenty-one million, eleven thousand, twelve".