11212122201 has 16 divisors (see below), whose sum is σ = 17086654848. Its totient is φ = 6406358400.

The previous prime is 11212122199. The next prime is 11212122221. The reversal of 11212122201 is 10222121211.

It is not a de Polignac number, because 11212122201 - 2¹ = 11212122199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11212122221) 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, 373221 + ... + 402141.

It is an arithmetic number, because the mean of its divisors is an integer number (1067915928).

Almost surely, 2^11212122201 is an apocalyptic number.

It is an amenable number.

11212122201 is a deficient number, since it is larger than the sum of its proper divisors (5874532647).

11212122201 is a wasteful number, since it uses less digits than its factorization.

11212122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47392.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11212122201 its reverse (10222121211), we get a palindrome (21434243412).

The spelling of 11212122201 in words is "eleven billion, two hundred twelve million, one hundred twenty-two thousand, two hundred one".