22020021021222 has 48 divisors (see below), whose sum is σ = 56896451838720. Its totient is φ = 6017893942896.

The previous prime is 22020021021151. The next prime is 22020021021293. The reversal of 22020021021222 is 22212012002022.

22020021021222 is a `hidden beast` number, since 2 + 20 + 200 + 210 + 212 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (22020021021151) and next prime (22020021021293).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22020021021195 and 22020021021204.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3799172572 + ... + 3799178367.

It is an arithmetic number, because the mean of its divisors is an integer number (1185342746640).

Almost surely, 2^{22020021021222} is an apocalyptic number.

22020021021222 is an abundant number, since it is smaller than the sum of its proper divisors (34876430817498).

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

22020021021222 is a wasteful number, since it uses less digits than its factorization.

22020021021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7598350977 (or 7598350974 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22020021021222 its reverse (22212012002022), we get a palindrome (44232033023244).

The spelling of 22020021021222 in words is "twenty-two trillion, twenty billion, twenty-one million, twenty-one thousand, two hundred twenty-two".