1022133220 has 24 divisors (see below), whose sum is σ = 2196399744. Its totient is φ = 399344736.

The previous prime is 1022133199. The next prime is 1022133223. The reversal of 1022133220 is 223312201.

It is a junction number, because it is equal to n+sod(n) for n = 1022133194 and 1022133203.

It is not an unprimeable number, because it can be changed into a prime (1022133223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593404 + ... + 595123.

It is an arithmetic number, because the mean of its divisors is an integer number (91516656).

Almost surely, 2^1022133220 is an apocalyptic number.

1022133220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022133220 is an abundant number, since it is smaller than the sum of its proper divisors (1174266524).

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

1022133220 is a wasteful number, since it uses less digits than its factorization.

1022133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188579 (or 1188577 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1022133220 is about 31970.8182566540. The cubic root of 1022133220 is about 1007.3239685311.

Adding to 1022133220 its reverse (223312201), we get a palindrome (1245445421).

The spelling of 1022133220 in words is "one billion, twenty-two million, one hundred thirty-three thousand, two hundred twenty".