1022000220 has 192 divisors, whose sum is σ = 3392202240. Its totient is φ = 254555136.

The previous prime is 1022000209. The next prime is 1022000227. The reversal of 1022000220 is 220002201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022000227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1495999 + ... + 1496681.

It is an arithmetic number, because the mean of its divisors is an integer number (17667720).

Almost surely, 2^1022000220 is an apocalyptic number.

1022000220 is a gapful number since it is divisible by the number (10) 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 1022000220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1696101120).

1022000220 is an abundant number, since it is smaller than the sum of its proper divisors (2370202020).

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

1022000220 is a wasteful number, since it uses less digits than its factorization.

1022000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1022000220 is about 31968.7381671532. The cubic root of 1022000220 is about 1007.2802756294.

Adding to 1022000220 its reverse (220002201), we get a palindrome (1242002421).

The spelling of 1022000220 in words is "one billion, twenty-two million, two hundred twenty", and thus it is an aban number.