1312202232121 has 8 divisors (see below), whose sum is σ = 1431637000704. Its totient is φ = 1192791406320.

The previous prime is 1312202232119. The next prime is 1312202232151. The reversal of 1312202232121 is 1212322022131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312202232121 - 2¹ = 1312202232119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312202232092 and 1312202232101.

It is not an unprimeable number, because it can be changed into a prime (1312202232151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5871001 + ... + 6090406.

It is an arithmetic number, because the mean of its divisors is an integer number (178954625088).

Almost surely, 2^{1312202232121} is an apocalyptic number.

1312202232121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1312202232121 is a deficient number, since it is larger than the sum of its proper divisors (119434768583).

1312202232121 is a wasteful number, since it uses less digits than its factorization.

1312202232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11971391.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1312202232121 its reverse (1212322022131), we get a palindrome (2524524254252).

The spelling of 1312202232121 in words is "one trillion, three hundred twelve billion, two hundred two million, two hundred thirty-two thousand, one hundred twenty-one".