11011202121012 has 12 divisors (see below), whose sum is σ = 25692804949056. Its totient is φ = 3670400707000.

The previous prime is 11011202120953. The next prime is 11011202121019. The reversal of 11011202121012 is 21012120211011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×11011202121012⁴ (a number of 53 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11011202120982 and 11011202121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011202121019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458800088364 + ... + 458800088387.

It is an arithmetic number, because the mean of its divisors is an integer number (2141067079088).

Almost surely, 2^{11011202121012} is an apocalyptic number.

11011202121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11011202121012 is an abundant number, since it is smaller than the sum of its proper divisors (14681602828044).

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

11011202121012 is a wasteful number, since it uses less digits than its factorization.

11011202121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917600176758 (or 917600176756 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11011202121012 its reverse (21012120211011), we get a palindrome (32023322332023).

The spelling of 11011202121012 in words is "eleven trillion, eleven billion, two hundred two million, one hundred twenty-one thousand, twelve".