1200122220103 has 16 divisors (see below), whose sum is σ = 1266479202240. Its totient is φ = 1134948900096.

The previous prime is 1200122220083. The next prime is 1200122220151. The reversal of 1200122220103 is 3010222210021.

It is a happy number.

It is not a de Polignac number, because 1200122220103 - 2⁵ = 1200122220071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200122230103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40100101 + ... + 40130017.

It is an arithmetic number, because the mean of its divisors is an integer number (79154950140).

Almost surely, 2^{1200122220103} is an apocalyptic number.

1200122220103 is a deficient number, since it is larger than the sum of its proper divisors (66356982137).

1200122220103 is a wasteful number, since it uses less digits than its factorization.

1200122220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49626.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1200122220103 its reverse (3010222210021), we get a palindrome (4210344430124).

The spelling of 1200122220103 in words is "one trillion, two hundred billion, one hundred twenty-two million, two hundred twenty thousand, one hundred three".