1213300220 has 24 divisors (see below), whose sum is σ = 2779561008. Its totient is φ = 441200000.

The previous prime is 1213300219. The next prime is 1213300241. The reversal of 1213300220 is 220033121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1213300195 and 1213300204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2757281 + ... + 2757720.

It is an arithmetic number, because the mean of its divisors is an integer number (115815042).

Almost surely, 2^1213300220 is an apocalyptic number.

1213300220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213300220 is an abundant number, since it is smaller than the sum of its proper divisors (1566260788).

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

1213300220 is a wasteful number, since it uses less digits than its factorization.

1213300220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515021 (or 5515019 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1213300220 is about 34832.4592872797. The cubic root of 1213300220 is about 1066.5701512065.

Adding to 1213300220 its reverse (220033121), we get a palindrome (1433333341).

The spelling of 1213300220 in words is "one billion, two hundred thirteen million, three hundred thousand, two hundred twenty".