1220101020200 has 24 divisors (see below), whose sum is σ = 2836734872430. Its totient is φ = 488040408000.

The previous prime is 1220101020167. The next prime is 1220101020227. The reversal of 1220101020200 is 20201010221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1037517439396 + 182583580804 = 1018586^2 + 427298^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3050252351 + ... + 3050252750.

Almost surely, 2^{1220101020200} is an apocalyptic number.

1220101020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220101020200 is an abundant number, since it is smaller than the sum of its proper divisors (1616633852230).

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

1220101020200 is a wasteful number, since it uses less digits than its factorization.

1220101020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100505117 (or 6100505108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1220101020200 its reverse (20201010221), we get a palindrome (1240302030421).

The spelling of 1220101020200 in words is "one trillion, two hundred twenty billion, one hundred one million, twenty thousand, two hundred".