1011220202 has 8 divisors (see below), whose sum is σ = 1518149316. Its totient is φ = 505170432.

The previous prime is 1011220193. The next prime is 1011220229. The reversal of 1011220202 is 2020221101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 978375841 + 32844361 = 31279^2 + 5731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 216953 + ... + 221564.

Almost surely, 2^1011220202 is an apocalyptic number.

1011220202 is a deficient number, since it is larger than the sum of its proper divisors (506929114).

1011220202 is a wasteful number, since it uses less digits than its factorization.

1011220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439672.

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

The square root of 1011220202 is about 31799.6887091682. The cubic root of 1011220202 is about 1003.7261657769.

Adding to 1011220202 its reverse (2020221101), we get a palindrome (3031441303).

The spelling of 1011220202 in words is "one billion, eleven million, two hundred twenty thousand, two hundred two".