19102201 has 8 divisors (see below), whose sum is σ = 20351520. Its totient is φ = 17877312.

The previous prime is 19102199. The next prime is 19102243. The reversal of 19102201 is 10220191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19102201 - 2¹ = 19102199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19102001) 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, 4480 + ... + 7633.

It is an arithmetic number, because the mean of its divisors is an integer number (2543940).

Almost surely, 2^19102201 is an apocalyptic number.

It is an amenable number.

19102201 is a deficient number, since it is larger than the sum of its proper divisors (1249319).

19102201 is a wasteful number, since it uses less digits than its factorization.

19102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12215.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 19102201 is about 4370.6064796547. The cubic root of 19102201 is about 267.3177539914.

Adding to 19102201 its reverse (10220191), we get a palindrome (29322392).

The spelling of 19102201 in words is "nineteen million, one hundred two thousand, two hundred one".