19205152201 has 4 divisors (see below), whose sum is σ = 19213530052. Its totient is φ = 19196774352.

The previous prime is 19205152189. The next prime is 19205152207. The reversal of 19205152201 is 10225150291.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6897468601 + 12307683600 = 83051^2 + 110940^2 .

It is a cyclic number.

It is not a de Polignac number, because 19205152201 - 2¹⁵ = 19205119433 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 19205152201.

It is not an unprimeable number, because it can be changed into a prime (19205152207) 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, 4185486 + ... + 4190071.

It is an arithmetic number, because the mean of its divisors is an integer number (4803382513).

Almost surely, 2^19205152201 is an apocalyptic number.

It is an amenable number.

19205152201 is a deficient number, since it is larger than the sum of its proper divisors (8377851).

19205152201 is an equidigital number, since it uses as much as digits as its factorization.

19205152201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8377850.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 19205152201 in words is "nineteen billion, two hundred five million, one hundred fifty-two thousand, two hundred one".