22211020222221 has 16 divisors (see below), whose sum is σ = 29673542257920. Its totient is φ = 14777923809600.

The previous prime is 22211020222187. The next prime is 22211020222249. The reversal of 22211020222221 is 12222202011222.

It is not a de Polignac number, because 22211020222221 - 2¹¹ = 22211020220173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211020242221) 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, 81058396 + ... + 81331946.

It is an arithmetic number, because the mean of its divisors is an integer number (1854596391120).

Almost surely, 2^{22211020222221} is an apocalyptic number.

It is an amenable number.

22211020222221 is a deficient number, since it is larger than the sum of its proper divisors (7462522035699).

22211020222221 is a wasteful number, since it uses less digits than its factorization.

22211020222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327236.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22211020222221 its reverse (12222202011222), we get a palindrome (34433222233443).

The spelling of 22211020222221 in words is "twenty-two trillion, two hundred eleven billion, twenty million, two hundred twenty-two thousand, two hundred twenty-one".