22220022020220 has 72 divisors (see below), whose sum is σ = 67418365874496. Its totient is φ = 5923789103232.

The previous prime is 22220022020179. The next prime is 22220022020237. The reversal of 22220022020220 is 2202022002222.

22220022020220 is a `hidden beast` number, since 2 + 2 + 2 + 200 + 220 + 20 + 220 = 666.

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 = 22220022020193 and 22220022020202.

It is a congruent number.

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, 15456847 + ... + 16833126.

Almost surely, 2^{22220022020220} is an apocalyptic number.

22220022020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220022020220 is an abundant number, since it is smaller than the sum of its proper divisors (45198343854276).

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

22220022020220 is a wasteful number, since it uses less digits than its factorization.

22220022020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32293811 (or 32293806 counting only the distinct ones).

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

Adding to 22220022020220 its reverse (2202022002222), we get a palindrome (24422044022442).

The spelling of 22220022020220 in words is "twenty-two trillion, two hundred twenty billion, twenty-two million, twenty thousand, two hundred twenty".