20500442166222 has 32 divisors (see below), whose sum is σ = 46667673228960. Its totient is φ = 6666810459840.

The previous prime is 20500442166203. The next prime is 20500442166271. The reversal of 20500442166222 is 22266124400502.

20500442166222 is a `hidden beast` number, since 2 + 0 + 5 + 0 + 0 + 4 + 4 + 21 + 6 + 622 + 2 = 666.

It is a super-2 number, since 2×20500442166222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4629727273 + ... + 4629731700.

It is an arithmetic number, because the mean of its divisors is an integer number (1458364788405).

Almost surely, 2^{20500442166222} is an apocalyptic number.

20500442166222 is an abundant number, since it is smaller than the sum of its proper divisors (26167231062738).

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

20500442166222 is a wasteful number, since it uses less digits than its factorization.

20500442166222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9259459025 (or 9259459019 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 20500442166222 its reverse (22266124400502), we get a palindrome (42766566566724).

The spelling of 20500442166222 in words is "twenty trillion, five hundred billion, four hundred forty-two million, one hundred sixty-six thousand, two hundred twenty-two".