11001201012 has 72 divisors (see below), whose sum is σ = 29373344000. Its totient is φ = 3466229760.

The previous prime is 11001200989. The next prime is 11001201019. The reversal of 11001201012 is 21010210011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11001200985 and 11001201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001201019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66637 + ... + 162612.

Almost surely, 2^11001201012 is an apocalyptic number.

11001201012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11001201012 is an abundant number, since it is smaller than the sum of its proper divisors (18372142988).

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

11001201012 is a wasteful number, since it uses less digits than its factorization.

11001201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229333 (or 229328 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11001201012 its reverse (21010210011), we get a palindrome (32011411023).

The spelling of 11001201012 in words is "eleven billion, one million, two hundred one thousand, twelve".