22012212201 has 16 divisors (see below), whose sum is σ = 33569750400. Its totient is φ = 12568157568.

The previous prime is 22012212199. The next prime is 22012212217. The reversal of 22012212201 is 10221221022.

It is not a de Polignac number, because 22012212201 - 2¹ = 22012212199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22012212251) 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, 400636 + ... + 452253.

It is an arithmetic number, because the mean of its divisors is an integer number (2098109400).

Almost surely, 2^22012212201 is an apocalyptic number.

22012212201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22012212201 is a deficient number, since it is larger than the sum of its proper divisors (11557538199).

22012212201 is a wasteful number, since it uses less digits than its factorization.

22012212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854128.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22012212201 its reverse (10221221022), we get a palindrome (32233433223).

The spelling of 22012212201 in words is "twenty-two billion, twelve million, two hundred twelve thousand, two hundred one".