22211221201 has 8 divisors (see below), whose sum is σ = 23988714624. Its totient is φ = 20443576080.

The previous prime is 22211221199. The next prime is 22211221211. The reversal of 22211221201 is 10212211222.

It is a happy number.

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 22211221201 - 2¹ = 22211221199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22211221211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2457385 + ... + 2466406.

It is an arithmetic number, because the mean of its divisors is an integer number (2998589328).

Almost surely, 2^22211221201 is an apocalyptic number.

It is an amenable number.

22211221201 is a deficient number, since it is larger than the sum of its proper divisors (1777493423).

22211221201 is a wasteful number, since it uses less digits than its factorization.

22211221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924151.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22211221201 its reverse (10212211222), we get a palindrome (32423432423).

The spelling of 22211221201 in words is "twenty-two billion, two hundred eleven million, two hundred twenty-one thousand, two hundred one".