11202121011211 has 16 divisors (see below), whose sum is σ = 12073110686784. Its totient is φ = 10332459915264.

The previous prime is 11202121011199. The next prime is 11202121011227. The reversal of 11202121011211 is 11211012120211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11202121011211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11202121011271) 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, 184436530 + ... + 184497256.

It is an arithmetic number, because the mean of its divisors is an integer number (754569417924).

Almost surely, 2^{11202121011211} is an apocalyptic number.

11202121011211 is a deficient number, since it is larger than the sum of its proper divisors (870989675573).

11202121011211 is a wasteful number, since it uses less digits than its factorization.

11202121011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71430.

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

Adding to 11202121011211 its reverse (11211012120211), we get a palindrome (22413133131422).

The spelling of 11202121011211 in words is "eleven trillion, two hundred two billion, one hundred twenty-one million, eleven thousand, two hundred eleven".