11101021001012 has 12 divisors (see below), whose sum is σ = 19428313983876. Its totient is φ = 5550074148480.

The previous prime is 11101021001011. The next prime is 11101021001017. The reversal of 11101021001012 is 21010012010111.

It can be written as a sum of positive squares in 2 ways, for example, as 10188698016676 + 912322984336 = 3191974^2 + 955156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11101021000984 and 11101021001002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101021001011) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 109030763 + ... + 109132530.

It is an arithmetic number, because the mean of its divisors is an integer number (1619026165323).

Almost surely, 2^{11101021001012} is an apocalyptic number.

It is an amenable number.

11101021001012 is a deficient number, since it is larger than the sum of its proper divisors (8327292982864).

11101021001012 is a wasteful number, since it uses less digits than its factorization.

11101021001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218176018 (or 218176016 counting only the distinct ones).

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

Adding to 11101021001012 its reverse (21010012010111), we get a palindrome (32111033011123).

The spelling of 11101021001012 in words is "eleven trillion, one hundred one billion, twenty-one million, one thousand, twelve".