11211002201121 has 16 divisors (see below), whose sum is σ = 15832968259968. Its totient is φ = 7031833862400.

The previous prime is 11211002201089. The next prime is 11211002201129. The reversal of 11211002201121 is 12110220011211.

It is a happy number.

It is not a de Polignac number, because 11211002201121 - 2⁵ = 11211002201089 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11211002201121.

It is not an unprimeable number, because it can be changed into a prime (11211002201129) 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, 39238450 + ... + 39523131.

It is an arithmetic number, because the mean of its divisors is an integer number (989560516248).

Almost surely, 2^{11211002201121} is an apocalyptic number.

It is an amenable number.

11211002201121 is a deficient number, since it is larger than the sum of its proper divisors (4621966058847).

11211002201121 is a wasteful number, since it uses less digits than its factorization.

11211002201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78764392.

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

Adding to 11211002201121 its reverse (12110220011211), we get a palindrome (23321222212332).

The spelling of 11211002201121 in words is "eleven trillion, two hundred eleven billion, two million, two hundred one thousand, one hundred twenty-one".