11222121201 has 16 divisors (see below), whose sum is σ = 15416688768. Its totient is φ = 7255785600.

The previous prime is 11222121173. The next prime is 11222121217. The reversal of 11222121201 is 10212122211.

It is not a de Polignac number, because 11222121201 - 2¹³ = 11222113009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11222121301) 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, 128020 + ... + 197061.

It is an arithmetic number, because the mean of its divisors is an integer number (963543048).

Almost surely, 2^11222121201 is an apocalyptic number.

It is an amenable number.

11222121201 is a deficient number, since it is larger than the sum of its proper divisors (4194567567).

11222121201 is a wasteful number, since it uses less digits than its factorization.

11222121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325432.

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

Adding to 11222121201 its reverse (10212122211), we get a palindrome (21434243412).

The spelling of 11222121201 in words is "eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred one".