11231212201 has 8 divisors (see below), whose sum is σ = 12254514624. Its totient is φ = 10208290320.

The previous prime is 11231212193. The next prime is 11231212217. The reversal of 11231212201 is 10221213211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11231212201 - 2³ = 11231212193 is a prime.

It is a super-2 number, since 2×11231212201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231212001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31570 + ... + 153163.

It is an arithmetic number, because the mean of its divisors is an integer number (1531814328).

Almost surely, 2^11231212201 is an apocalyptic number.

11231212201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11231212201 is a deficient number, since it is larger than the sum of its proper divisors (1023302423).

11231212201 is a wasteful number, since it uses less digits than its factorization.

11231212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190271.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11231212201 its reverse (10221213211), we get a palindrome (21452425412).

The spelling of 11231212201 in words is "eleven billion, two hundred thirty-one million, two hundred twelve thousand, two hundred one".