19012112110202 has 4 divisors (see below), whose sum is σ = 28518168165306. Its totient is φ = 9506056055100.

The previous prime is 19012112110183. The next prime is 19012112110331. The reversal of 19012112110202 is 20201121121091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15067276592281 + 3944835517921 = 3881659^2 + 1986161^2 .

It is a super-2 number, since 2×19012112110202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4753028027549 + ... + 4753028027552.

Almost surely, 2^{19012112110202} is an apocalyptic number.

19012112110202 is a deficient number, since it is larger than the sum of its proper divisors (9506056055104).

19012112110202 is an equidigital number, since it uses as much as digits as its factorization.

19012112110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9506056055103.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 19012112110202 its reverse (20201121121091), we get a palindrome (39213233231293).

The spelling of 19012112110202 in words is "nineteen trillion, twelve billion, one hundred twelve million, one hundred ten thousand, two hundred two".