19122010209973 has 4 divisors (see below), whose sum is σ = 20860374774528. Its totient is φ = 17383645645420.

The previous prime is 19122010209959. The next prime is 19122010210067. The reversal of 19122010209973 is 37990201022191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19122010209973 - 2²⁵ = 19121976655541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19122010209073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869182282261 + ... + 869182282282.

It is an arithmetic number, because the mean of its divisors is an integer number (5215093693632).

Almost surely, 2^{19122010209973} is an apocalyptic number.

It is an amenable number.

19122010209973 is a deficient number, since it is larger than the sum of its proper divisors (1738364564555).

19122010209973 is a wasteful number, since it uses less digits than its factorization.

19122010209973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738364564554.

The product of its (nonzero) digits is 122472, while the sum is 46.

The spelling of 19122010209973 in words is "nineteen trillion, one hundred twenty-two billion, ten million, two hundred nine thousand, nine hundred seventy-three".