191210010020012 has 24 divisors (see below), whose sum is σ = 354603463749360. Its totient is φ = 89904339832320.

The previous prime is 191210010020011. The next prime is 191210010020023. The reversal of 191210010020012 is 210020010012191.

It is a super-2 number, since 2×191210010020012² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (191210010020011) 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, 1200565937 + ... + 1200725192.

It is an arithmetic number, because the mean of its divisors is an integer number (14775144322890).

Almost surely, 2^{191210010020012} is an apocalyptic number.

It is an amenable number.

191210010020012 is a deficient number, since it is larger than the sum of its proper divisors (163393453729348).

191210010020012 is a wasteful number, since it uses less digits than its factorization.

191210010020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401292321 (or 2401292319 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 191210010020012 in words is "one hundred ninety-one trillion, two hundred ten billion, ten million, twenty thousand, twelve".