1220000202 has 24 divisors (see below), whose sum is σ = 2643977700. Its totient is φ = 406567680.

The previous prime is 1220000191. The next prime is 1220000231. The reversal of 1220000202 is 2020000221.

It can be written as a sum of positive squares in 2 ways, for example, as 1216684161 + 3316041 = 34881^2 + 1821^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

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 11 ways as a sum of consecutive naturals, for example, 133252 + ... + 142112.

Almost surely, 2^1220000202 is an apocalyptic number.

1220000202 is an abundant number, since it is smaller than the sum of its proper divisors (1423977498).

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

1220000202 is a wasteful number, since it uses less digits than its factorization.

1220000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16518 (or 16515 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1220000202 is about 34928.5012847674. The cubic root of 1220000202 is about 1068.5297891224.

Adding to 1220000202 its reverse (2020000221), we get a palindrome (3240000423).

The spelling of 1220000202 in words is "one billion, two hundred twenty million, two hundred two", and thus it is an aban number.