11212100201 has 4 divisors (see below), whose sum is σ = 11354025600. Its totient is φ = 11070174804.

The previous prime is 11212100197. The next prime is 11212100239. The reversal of 11212100201 is 10200121211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11212100201 - 2² = 11212100197 is a prime.

It is a super-2 number, since 2×11212100201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212100281) 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, 70962581 + ... + 70962738.

It is an arithmetic number, because the mean of its divisors is an integer number (2838506400).

Almost surely, 2^11212100201 is an apocalyptic number.

It is an amenable number.

11212100201 is a deficient number, since it is larger than the sum of its proper divisors (141925399).

11212100201 is an equidigital number, since it uses as much as digits as its factorization.

11212100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141925398.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11212100201 its reverse (10200121211), we get a palindrome (21412221412).

The spelling of 11212100201 in words is "eleven billion, two hundred twelve million, one hundred thousand, two hundred one".