20022222202220 has 96 divisors (see below), whose sum is σ = 48173435347968. Its totient is φ = 6847618436352.

The previous prime is 20022222202133. The next prime is 20022222202247. The reversal of 20022222202220 is 2220222222002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20022222202192 and 20022222202201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139852994 + ... + 139996086.

It is an arithmetic number, because the mean of its divisors is an integer number (501806618208).

Almost surely, 2^{20022222202220} is an apocalyptic number.

20022222202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022222202220 is an abundant number, since it is smaller than the sum of its proper divisors (28151213145748).

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

20022222202220 is a wasteful number, since it uses less digits than its factorization.

20022222202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145599 (or 145597 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20022222202220 its reverse (2220222222002), we get a palindrome (22242444424222).

The spelling of 20022222202220 in words is "twenty trillion, twenty-two billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty".