1322211020 has 24 divisors (see below), whose sum is σ = 2990231664. Its totient is φ = 488200896.

The previous prime is 1322211019. The next prime is 1322211049. The reversal of 1322211020 is 201122231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1322210986 and 1322211004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2542454 + ... + 2542973.

It is an arithmetic number, because the mean of its divisors is an integer number (124592986).

Almost surely, 2^1322211020 is an apocalyptic number.

1322211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322211020 is an abundant number, since it is smaller than the sum of its proper divisors (1668020644).

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

1322211020 is a wasteful number, since it uses less digits than its factorization.

1322211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085449 (or 5085447 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1322211020 is about 36362.2196792220. The cubic root of 1322211020 is about 1097.5734444410.

Adding to 1322211020 its reverse (201122231), we get a palindrome (1523333251).

It can be divided in two parts, 13222 and 11020, that added together give a palindrome (24242).

The spelling of 1322211020 in words is "one billion, three hundred twenty-two million, two hundred eleven thousand, twenty".