1200110101 has 4 divisors (see below), whose sum is σ = 1200313600. Its totient is φ = 1199906604.

The previous prime is 1200110083. The next prime is 1200110117. The reversal of 1200110101 is 1010110021.

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 1200110101 - 2⁵ = 1200110069 is a prime.

It is a super-4 number, since 4×1200110101⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200110141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92631 + ... + 104788.

It is an arithmetic number, because the mean of its divisors is an integer number (300078400).

Almost surely, 2^1200110101 is an apocalyptic number.

It is an amenable number.

1200110101 is a deficient number, since it is larger than the sum of its proper divisors (203499).

1200110101 is an equidigital number, since it uses as much as digits as its factorization.

1200110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203498.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1200110101 is about 34642.6052859770. The cubic root of 1200110101 is about 1062.6910681251.

Adding to 1200110101 its reverse (1010110021), we get a palindrome (2210220122).

The spelling of 1200110101 in words is "one billion, two hundred million, one hundred ten thousand, one hundred one".