222202020 has 96 divisors (see below), whose sum is σ = 645958656. Its totient is φ = 57024000.

The previous prime is 222201989. The next prime is 222202033. The reversal of 222202020 is 20202222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 222201987 and 222202005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223725 + ... + 224715.

It is an arithmetic number, because the mean of its divisors is an integer number (6728736).

Almost surely, 2^222202020 is an apocalyptic number.

222202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322979328).

222202020 is an abundant number, since it is smaller than the sum of its proper divisors (423756636).

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

222202020 is a wasteful number, since it uses less digits than its factorization.

222202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 222202020 is about 14906.4422314649. The cubic root of 222202020 is about 605.6885087841.

Adding to 222202020 its reverse (20202222), we get a palindrome (242404242).

The spelling of 222202020 in words is "two hundred twenty-two million, two hundred two thousand, twenty".