1912092759221 has 4 divisors (see below), whose sum is σ = 1912229713152. Its totient is φ = 1911955805292.

The previous prime is 1912092759191. The next prime is 1912092759301. The reversal of 1912092759221 is 1229572902191.

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 1912092759221 - 2¹⁴ = 1912092742837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1912092759221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912094759221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68456021 + ... + 68483946.

It is an arithmetic number, because the mean of its divisors is an integer number (478057428288).

Almost surely, 2^{1912092759221} is an apocalyptic number.

It is an amenable number.

1912092759221 is a deficient number, since it is larger than the sum of its proper divisors (136953931).

1912092759221 is a wasteful number, since it uses less digits than its factorization.

1912092759221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136953930.

The product of its (nonzero) digits is 408240, while the sum is 50.

The spelling of 1912092759221 in words is "one trillion, nine hundred twelve billion, ninety-two million, seven hundred fifty-nine thousand, two hundred twenty-one".