191102729212 has 12 divisors (see below), whose sum is σ = 334456328920. Its totient is φ = 95543778096.

The previous prime is 191102729203. The next prime is 191102729227. The reversal of 191102729212 is 212927201191.

It is a super-2 number, since 2×191102729212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1839762 + ... + 1940857.

Almost surely, 2^191102729212 is an apocalyptic number.

It is an amenable number.

191102729212 is a deficient number, since it is larger than the sum of its proper divisors (143353599708).

191102729212 is a wasteful number, since it uses less digits than its factorization.

191102729212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793260 (or 3793258 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 191102729212 in words is "one hundred ninety-one billion, one hundred two million, seven hundred twenty-nine thousand, two hundred twelve".