1022220220 has 48 divisors (see below), whose sum is σ = 2476293120. Its totient is φ = 347194944.

The previous prime is 1022220167. The next prime is 1022220223. The reversal of 1022220220 is 220222201.

It is a self number, because there is not a number n which added to its sum of digits gives 1022220220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022220223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19140 + ... + 49099.

It is an arithmetic number, because the mean of its divisors is an integer number (51589440).

Almost surely, 2^1022220220 is an apocalyptic number.

1022220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022220220 is an abundant number, since it is smaller than the sum of its proper divisors (1454072900).

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

1022220220 is a wasteful number, since it uses less digits than its factorization.

1022220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68362 (or 68360 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1022220220 is about 31972.1788434883. The cubic root of 1022220220 is about 1007.3525475517.

Adding to 1022220220 its reverse (220222201), we get a palindrome (1242442421).

The spelling of 1022220220 in words is "one billion, twenty-two million, two hundred twenty thousand, two hundred twenty".