191022121122202 has 16 divisors (see below), whose sum is σ = 286571962122624. Its totient is φ = 95498134270000.

The previous prime is 191022121122199. The next prime is 191022121122233. The reversal of 191022121122202 is 202221121220191.

It is a super-2 number, since 2×191022121122202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963583452 + ... + 963781672.

It is an arithmetic number, because the mean of its divisors is an integer number (17910747632664).

Almost surely, 2^{191022121122202} is an apocalyptic number.

191022121122202 is a deficient number, since it is larger than the sum of its proper divisors (95549841000422).

191022121122202 is a wasteful number, since it uses less digits than its factorization.

191022121122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261005.

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 191022121122202 its reverse (202221121220191), we get a palindrome (393243242342393).

The spelling of 191022121122202 in words is "one hundred ninety-one trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred two".