1012200220123 has 12 divisors (see below), whose sum is σ = 1075286988360. Its totient is φ = 952620795392.

The previous prime is 1012200220117. The next prime is 1012200220177. The reversal of 1012200220123 is 3210220022101.

It is a happy number.

It is not a de Polignac number, because 1012200220123 - 2¹³ = 1012200211931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012200220097 and 1012200220106.

It is not an unprimeable number, because it can be changed into a prime (1012200220183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9300540 + ... + 9408742.

It is an arithmetic number, because the mean of its divisors is an integer number (89607249030).

Almost surely, 2^{1012200220123} is an apocalyptic number.

1012200220123 is a deficient number, since it is larger than the sum of its proper divisors (63086768237).

1012200220123 is a wasteful number, since it uses less digits than its factorization.

1012200220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140606 (or 140589 counting only the distinct ones).

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

Adding to 1012200220123 its reverse (3210220022101), we get a palindrome (4222420242224).

The spelling of 1012200220123 in words is "one trillion, twelve billion, two hundred million, two hundred twenty thousand, one hundred twenty-three".