1201233000121 has 32 divisors (see below), whose sum is σ = 1607460242688. Its totient is φ = 868897290240.

The previous prime is 1201233000113. The next prime is 1201233000131. The reversal of 1201233000121 is 1210003321021.

It is not a de Polignac number, because 1201233000121 - 2³ = 1201233000113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201233000095 and 1201233000104.

It is not an unprimeable number, because it can be changed into a prime (1201233000131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6189870 + ... + 6380983.

It is an arithmetic number, because the mean of its divisors is an integer number (50233132584).

Almost surely, 2^{1201233000121} is an apocalyptic number.

1201233000121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201233000121 is a deficient number, since it is larger than the sum of its proper divisors (406227242567).

1201233000121 is a wasteful number, since it uses less digits than its factorization.

1201233000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12570961.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1201233000121 its reverse (1210003321021), we get a palindrome (2411236321142).

The spelling of 1201233000121 in words is "one trillion, two hundred one billion, two hundred thirty-three million, one hundred twenty-one", and thus it is an aban number.