213320101220 has 12 divisors (see below), whose sum is σ = 447972212604. Its totient is φ = 85328040480.

The previous prime is 213320101219. The next prime is 213320101249. The reversal of 213320101220 is 22101023312.

It can be written as a sum of positive squares in 2 ways, for example, as 141484308736 + 71835792484 = 376144^2 + 268022^2 .

It is a super-2 number, since 2×213320101220² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5333002511 + ... + 5333002550.

It is an arithmetic number, because the mean of its divisors is an integer number (37331017717).

Almost surely, 2^213320101220 is an apocalyptic number.

213320101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213320101220 is an abundant number, since it is smaller than the sum of its proper divisors (234652111384).

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

213320101220 is a wasteful number, since it uses less digits than its factorization.

213320101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10666005070 (or 10666005068 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 213320101220 its reverse (22101023312), we get a palindrome (235421124532).

The spelling of 213320101220 in words is "two hundred thirteen billion, three hundred twenty million, one hundred one thousand, two hundred twenty".