22021010220220 has 24 divisors (see below), whose sum is σ = 50448132505008. Its totient is φ = 8007640080000.

The previous prime is 22021010220211. The next prime is 22021010220221. The reversal of 22021010220220 is 2202201012022.

It is a super-2 number, since 2×22021010220220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22021010220194 and 22021010220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021010220221) 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 7 ways as a sum of consecutive naturals, for example, 50047750281 + ... + 50047750720.

It is an arithmetic number, because the mean of its divisors is an integer number (2102005521042).

Almost surely, 2^{22021010220220} is an apocalyptic number.

22021010220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021010220220 is an abundant number, since it is smaller than the sum of its proper divisors (28427122284788).

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

22021010220220 is a wasteful number, since it uses less digits than its factorization.

22021010220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100095501021 (or 100095501019 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22021010220220 its reverse (2202201012022), we get a palindrome (24223211232242).

The spelling of 22021010220220 in words is "twenty-two trillion, twenty-one billion, ten million, two hundred twenty thousand, two hundred twenty".