11211111201012 has 48 divisors (see below), whose sum is σ = 26176811160192. Its totient is φ = 3734530531200.

The previous prime is 11211111201001. The next prime is 11211111201019. The reversal of 11211111201012 is 21010211111211.

It is a super-2 number, since 2×11211111201012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11211111200982 and 11211111201000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211111201019) 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, 112172262 + ... + 112272162.

It is an arithmetic number, because the mean of its divisors is an integer number (545350232504).

Almost surely, 2^{11211111201012} is an apocalyptic number.

11211111201012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11211111201012 is an abundant number, since it is smaller than the sum of its proper divisors (14965699959180).

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

11211111201012 is a wasteful number, since it uses less digits than its factorization.

11211111201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106088 (or 106086 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11211111201012 its reverse (21010211111211), we get a palindrome (32221322312223).

The spelling of 11211111201012 in words is "eleven trillion, two hundred eleven billion, one hundred eleven million, two hundred one thousand, twelve".