11201210212321 has 4 divisors (see below), whose sum is σ = 11474410461444. Its totient is φ = 10928009963200.

The previous prime is 11201210212301. The next prime is 11201210212327. The reversal of 11201210212321 is 12321201210211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2991294775296 + 8209915437025 = 1729536^2 + 2865295^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201210212321 - 2¹⁷ = 11201210081249 is a prime.

It is a super-2 number, since 2×11201210212321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201210212327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136600124500 + ... + 136600124581.

It is an arithmetic number, because the mean of its divisors is an integer number (2868602615361).

Almost surely, 2^{11201210212321} is an apocalyptic number.

It is an amenable number.

11201210212321 is a deficient number, since it is larger than the sum of its proper divisors (273200249123).

11201210212321 is an equidigital number, since it uses as much as digits as its factorization.

11201210212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273200249122.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11201210212321 its reverse (12321201210211), we get a palindrome (23522411422532).

The spelling of 11201210212321 in words is "eleven trillion, two hundred one billion, two hundred ten million, two hundred twelve thousand, three hundred twenty-one".