20211222122226 has 24 divisors (see below), whose sum is σ = 43794792606864. Its totient is φ = 6736487680440.

The previous prime is 20211222122159. The next prime is 20211222122227. The reversal of 20211222122226 is 62222122211202.

20211222122226 is a `hidden beast` number, since 2 + 0 + 211 + 2 + 221 + 2 + 2 + 226 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20211222122226.

It is not an unprimeable number, because it can be changed into a prime (20211222122227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48650776 + ... + 49064451.

It is an arithmetic number, because the mean of its divisors is an integer number (1824783025286).

Almost surely, 2^{20211222122226} is an apocalyptic number.

20211222122226 is an abundant number, since it is smaller than the sum of its proper divisors (23583570484638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20211222122226 is a wasteful number, since it uses less digits than its factorization.

20211222122226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97726726 (or 97726723 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 20211222122226 its reverse (62222122211202), we get a palindrome (82433344333428).

The spelling of 20211222122226 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-six".