991133020201202 has 16 divisors (see below), whose sum is σ = 1486964060352000. Its totient is φ = 495478338283440.

The previous prime is 991133020201201. The next prime is 991133020201231. The reversal of 991133020201202 is 202102020331199.

It is a super-3 number, since 3×991133020201202³ (a number of 46 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (991133020201201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412392377 + ... + 414788787.

It is an arithmetic number, because the mean of its divisors is an integer number (92935253772000).

Almost surely, 2^{991133020201202} is an apocalyptic number.

991133020201202 is a deficient number, since it is larger than the sum of its proper divisors (495831040150798).

991133020201202 is a wasteful number, since it uses less digits than its factorization.

991133020201202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433121.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 991133020201202 in words is "nine hundred ninety-one trillion, one hundred thirty-three billion, twenty million, two hundred one thousand, two hundred two".