1210200000220 has 48 divisors (see below), whose sum is σ = 2586792434688. Its totient is φ = 475513113600.

The previous prime is 1210200000211. The next prime is 1210200000221. The reversal of 1210200000220 is 220000020121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1210200000197 and 1210200000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210200000221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2102157 + ... + 2615236.

It is an arithmetic number, because the mean of its divisors is an integer number (53891509056).

Almost surely, 2^{1210200000220} is an apocalyptic number.

1210200000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210200000220 is an abundant number, since it is smaller than the sum of its proper divisors (1376592434468).

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

1210200000220 is a wasteful number, since it uses less digits than its factorization.

1210200000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717630 (or 4717628 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1210200000220 its reverse (220000020121), we get a palindrome (1430200020341).

The spelling of 1210200000220 in words is "one trillion, two hundred ten billion, two hundred million, two hundred twenty", and thus it is an aban number.