1322010020 has 12 divisors (see below), whose sum is σ = 2776221084. Its totient is φ = 528804000.

The previous prime is 1322010013. The next prime is 1322010023. The reversal of 1322010020 is 200102231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 753282916 + 568727104 = 27446^2 + 23848^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1322009983 and 1322010010.

It is not an unprimeable number, because it can be changed into a prime (1322010023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33050231 + ... + 33050270.

It is an arithmetic number, because the mean of its divisors is an integer number (231351757).

Almost surely, 2^1322010020 is an apocalyptic number.

1322010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322010020 is an abundant number, since it is smaller than the sum of its proper divisors (1454211064).

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

1322010020 is a wasteful number, since it uses less digits than its factorization.

1322010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66100510 (or 66100508 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1322010020 is about 36359.4557164983. The cubic root of 1322010020 is about 1097.5178246146.

Adding to 1322010020 its reverse (200102231), we get a palindrome (1522112251).

The spelling of 1322010020 in words is "one billion, three hundred twenty-two million, ten thousand, twenty".