11211101012201 has 4 divisors (see below), whose sum is σ = 11211112462212. Its totient is φ = 11211089562192.

The previous prime is 11211101012197. The next prime is 11211101012213. The reversal of 11211101012201 is 10221010111211.

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 8942013702400 + 2269087309801 = 2990320^2 + 1506349^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211101012201 - 2² = 11211101012197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211101015201) 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, 4103150 + ... + 6265623.

It is an arithmetic number, because the mean of its divisors is an integer number (2802778115553).

Almost surely, 2^{11211101012201} is an apocalyptic number.

It is an amenable number.

11211101012201 is a deficient number, since it is larger than the sum of its proper divisors (11450011).

11211101012201 is a wasteful number, since it uses less digits than its factorization.

11211101012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11450010.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11211101012201 its reverse (10221010111211), we get a palindrome (21432111123412).

The spelling of 11211101012201 in words is "eleven trillion, two hundred eleven billion, one hundred one million, twelve thousand, two hundred one".