1820110201 has 16 divisors (see below), whose sum is σ = 2257250688. Its totient is φ = 1429084800.

The previous prime is 1820110199. The next prime is 1820110217. The reversal of 1820110201 is 1020110281.

It is not a de Polignac number, because 1820110201 - 2¹ = 1820110199 is a prime.

It is a super-2 number, since 2×1820110201² = 6625602287568520802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1820110291) 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 15 ways as a sum of consecutive naturals, for example, 64420 + ... + 88261.

It is an arithmetic number, because the mean of its divisors is an integer number (141078168).

Almost surely, 2^1820110201 is an apocalyptic number.

It is an amenable number.

1820110201 is a deficient number, since it is larger than the sum of its proper divisors (437140487).

1820110201 is a wasteful number, since it uses less digits than its factorization.

1820110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152832.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 1820110201 is about 42662.7495714939. The cubic root of 1820110201 is about 1220.9537916695.

Adding to 1820110201 its reverse (1020110281), we get a palindrome (2840220482).

The spelling of 1820110201 in words is "one billion, eight hundred twenty million, one hundred ten thousand, two hundred one".