11211001300120 has 32 divisors (see below), whose sum is σ = 25224900016320. Its totient is φ = 4484374370560.

The previous prime is 11211001300091. The next prime is 11211001300129. The reversal of 11211001300120 is 2100310011211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11211001300120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211001300129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7067409 + ... + 8507071.

It is an arithmetic number, because the mean of its divisors is an integer number (788278125510).

Almost surely, 2^{11211001300120} is an apocalyptic number.

11211001300120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211001300120 is an abundant number, since it is smaller than the sum of its proper divisors (14013898716200).

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

11211001300120 is a wasteful number, since it uses less digits than its factorization.

11211001300120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634355 (or 1634351 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11211001300120 its reverse (2100310011211), we get a palindrome (13311311311331).

The spelling of 11211001300120 in words is "eleven trillion, two hundred eleven billion, one million, three hundred thousand, one hundred twenty".