1001200202 has 4 divisors (see below), whose sum is σ = 1501800306. Its totient is φ = 500600100.

The previous prime is 1001200171. The next prime is 1001200219. The reversal of 1001200202 is 2020021001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2020021001 = 24007 ⋅84143.

It can be written as a sum of positive squares in only one way, i.e., 503508721 + 497691481 = 22439^2 + 22309^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1001200202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250300049 + ... + 250300052.

Almost surely, 2^1001200202 is an apocalyptic number.

1001200202 is a deficient number, since it is larger than the sum of its proper divisors (500600104).

1001200202 is an equidigital number, since it uses as much as digits as its factorization.

1001200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500600103.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1001200202 is about 31641.7477709434. The cubic root of 1001200202 is about 1000.3999073861.

Adding to 1001200202 its reverse (2020021001), we get a palindrome (3021221203).

The spelling of 1001200202 in words is "one billion, one million, two hundred thousand, two hundred two".