1022002220 has 48 divisors (see below), whose sum is σ = 2164555008. Its totient is φ = 405324480.

The previous prime is 1022002211. The next prime is 1022002231. The reversal of 1022002220 is 222002201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1740767 + ... + 1741353.

It is an arithmetic number, because the mean of its divisors is an integer number (45094896).

Almost surely, 2^1022002220 is an apocalyptic number.

1022002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022002220 is an abundant number, since it is smaller than the sum of its proper divisors (1142552788).

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

1022002220 is a wasteful number, since it uses less digits than its factorization.

1022002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1022002220 is about 31968.7694476969. The cubic root of 1022002220 is about 1007.2809326936.

Adding to 1022002220 its reverse (222002201), we get a palindrome (1244004421).

The spelling of 1022002220 in words is "one billion, twenty-two million, two thousand, two hundred twenty".