11011021201012 has 72 divisors (see below), whose sum is σ = 22477622840064. Its totient is φ = 4705897367808.

The previous prime is 11011021201009. The next prime is 11011021201043. The reversal of 11011021201012 is 21010212011011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11011021200983 and 11011021201001.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 187274283 + ... + 187333069.

It is an arithmetic number, because the mean of its divisors is an integer number (312189206112).

Almost surely, 2^{11011021201012} is an apocalyptic number.

It is an amenable number.

11011021201012 is an abundant number, since it is smaller than the sum of its proper divisors (11466601639052).

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

11011021201012 is a wasteful number, since it uses less digits than its factorization.

11011021201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61445 (or 61436 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11011021201012 its reverse (21010212011011), we get a palindrome (32021233212023).

The spelling of 11011021201012 in words is "eleven trillion, eleven billion, twenty-one million, two hundred one thousand, twelve".