1232212322121 has 16 divisors (see below), whose sum is σ = 1840749613248. Its totient is φ = 726611688000.

The previous prime is 1232212322057. The next prime is 1232212322137. The reversal of 1232212322121 is 1212232122321.

It is not a de Polignac number, because 1232212322121 - 2⁶ = 1232212322057 is a prime.

It is a super-3 number, since 3×1232212322121³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1232212322091 and 1232212322100.

It is not an unprimeable number, because it can be changed into a prime (1232212322191) 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 15 ways as a sum of consecutive naturals, for example, 504590230 + ... + 504592671.

It is an arithmetic number, because the mean of its divisors is an integer number (115046850828).

Almost surely, 2^{1232212322121} is an apocalyptic number.

1232212322121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1232212322121 is a deficient number, since it is larger than the sum of its proper divisors (608537291127).

1232212322121 is a wasteful number, since it uses less digits than its factorization.

1232212322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009182952.

The product of its digits is 1152, while the sum is 24.

Adding to 1232212322121 its reverse (1212232122321), we get a palindrome (2444444444442).

The spelling of 1232212322121 in words is "one trillion, two hundred thirty-two billion, two hundred twelve million, three hundred twenty-two thousand, one hundred twenty-one".