9911221202 has 8 divisors (see below), whose sum is σ = 14868757116. Its totient is φ = 4954968832.

The previous prime is 9911221183. The next prime is 9911221207. The reversal of 9911221202 is 2021221199.

9911221202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6867602641 + 3043618561 = 82871^2 + 55169^2 .

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

It is a super-3 number, since 3×9911221202³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9911221207) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 301343 + ... + 332610.

Almost surely, 2^9911221202 is an apocalyptic number.

9911221202 is a deficient number, since it is larger than the sum of its proper divisors (4957535914).

9911221202 is a wasteful number, since it uses less digits than its factorization.

9911221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641772.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 9911221202 is about 99555.1164029253. The cubic root of 9911221202 is about 2148.0401250673.

The spelling of 9911221202 in words is "nine billion, nine hundred eleven million, two hundred twenty-one thousand, two hundred two".