11021123331012 has 48 divisors (see below), whose sum is σ = 26546192433152. Its totient is φ = 3555108519840.

The previous prime is 11021123331011. The next prime is 11021123331013. The reversal of 11021123331012 is 21013332112011.

It is an interprime number because it is at equal distance from previous prime (11021123331011) and next prime (11021123331013).

It is a self number, because there is not a number n which added to its sum of digits gives 11021123331012.

It is not an unprimeable number, because it can be changed into a prime (11021123331011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14716623 + ... + 15447369.

Almost surely, 2^{11021123331012} is an apocalyptic number.

11021123331012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11021123331012 is an abundant number, since it is smaller than the sum of its proper divisors (15525069102140).

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

11021123331012 is a wasteful number, since it uses less digits than its factorization.

11021123331012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771328 (or 771326 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11021123331012 its reverse (21013332112011), we get a palindrome (32034455443023).

The spelling of 11021123331012 in words is "eleven trillion, twenty-one billion, one hundred twenty-three million, three hundred thirty-one thousand, twelve".