10220001320 has 32 divisors (see below), whose sum is σ = 23205976200. Its totient is φ = 4050494208.

The previous prime is 10220001301. The next prime is 10220001329. The reversal of 10220001320 is 2310002201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7707786436 + 2512214884 = 87794^2 + 50122^2 .

It is not an unprimeable number, because it can be changed into a prime (10220001329) 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, 1167659 + ... + 1176378.

Almost surely, 2^10220001320 is an apocalyptic number.

10220001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10220001320 is an abundant number, since it is smaller than the sum of its proper divisors (12985974880).

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

10220001320 is a wasteful number, since it uses less digits than its factorization.

10220001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344157 (or 2344153 counting only the distinct ones).

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

Adding to 10220001320 its reverse (2310002201), we get a palindrome (12530003521).

The spelling of 10220001320 in words is "ten billion, two hundred twenty million, one thousand, three hundred twenty".