1322022220 has 24 divisors (see below), whose sum is σ = 2777040000. Its totient is φ = 528657792.

The previous prime is 1322022211. The next prime is 1322022227. The reversal of 1322022220 is 222202231.

It is a junction number, because it is equal to n+sod(n) for n = 1322022194 and 1322022203.

It is not an unprimeable number, because it can be changed into a prime (1322022227) 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, 85656 + ... + 99904.

It is an arithmetic number, because the mean of its divisors is an integer number (115710000).

Almost surely, 2^1322022220 is an apocalyptic number.

1322022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322022220 is an abundant number, since it is smaller than the sum of its proper divisors (1455017780).

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

1322022220 is a wasteful number, since it uses less digits than its factorization.

1322022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18897 (or 18895 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1322022220 is about 36359.6234853993. The cubic root of 1322022220 is about 1097.5212007050.

Adding to 1322022220 its reverse (222202231), we get a palindrome (1544224451).

The spelling of 1322022220 in words is "one billion, three hundred twenty-two million, twenty-two thousand, two hundred twenty".