22002202222020 has 72 divisors (see below), whose sum is σ = 66740609511576. Its totient is φ = 5867201521152.

The previous prime is 22002202222009. The next prime is 22002202222079. The reversal of 22002202222020 is 2022220220022.

22002202222020 is a `hidden beast` number, since 2 + 20 + 0 + 220 + 222 + 202 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 417016309824 + 21585185912196 = 645768^2 + 4645986^2 .

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 = 22002202221984 and 22002202222002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22314984 + ... + 23280096.

It is an arithmetic number, because the mean of its divisors is an integer number (926952909883).

Almost surely, 2^{22002202222020} is an apocalyptic number.

22002202222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002202222020 is an abundant number, since it is smaller than the sum of its proper divisors (44738407289556).

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

22002202222020 is a wasteful number, since it uses less digits than its factorization.

22002202222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091781 (or 1091776 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22002202222020 its reverse (2022220220022), we get a palindrome (24024422442042).

The spelling of 22002202222020 in words is "twenty-two trillion, two billion, two hundred two million, two hundred twenty-two thousand, twenty".