22022021221002 has 24 divisors (see below), whose sum is σ = 52052050159200. Its totient is φ = 6673339763880.

The previous prime is 22022021220853. The next prime is 22022021221033. The reversal of 22022021221002 is 20012212022022.

22022021221002 is a `hidden beast` number, since 2 + 20 + 220 + 212 + 210 + 0 + 2 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55611164502 + ... + 55611164897.

It is an arithmetic number, because the mean of its divisors is an integer number (2168835423300).

Almost surely, 2^{22022021221002} is an apocalyptic number.

22022021221002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22022021221002 is an abundant number, since it is smaller than the sum of its proper divisors (30030028938198).

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

22022021221002 is a wasteful number, since it uses less digits than its factorization.

22022021221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111222329418 (or 111222329415 counting only the distinct ones).

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

Adding to 22022021221002 its reverse (20012212022022), we get a palindrome (42034233243024).

The spelling of 22022021221002 in words is "twenty-two trillion, twenty-two billion, twenty-one million, two hundred twenty-one thousand, two".