1232213222121 has 16 divisors (see below), whose sum is σ = 1988108728704. Its totient is φ = 662702909184.

The previous prime is 1232213222099. The next prime is 1232213222129. The reversal of 1232213222121 is 1212223122321.

It is not a de Polignac number, because 1232213222121 - 2⁶ = 1232213222057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1232213222091 and 1232213222100.

It is not an unprimeable number, because it can be changed into a prime (1232213222129) 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, 1725788470 + ... + 1725789183.

It is an arithmetic number, because the mean of its divisors is an integer number (124256795544).

Almost surely, 2^{1232213222121} is an apocalyptic number.

It is an amenable number.

1232213222121 is a deficient number, since it is larger than the sum of its proper divisors (755895506583).

1232213222121 is a wasteful number, since it uses less digits than its factorization.

1232213222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451577680.

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

Adding to 1232213222121 its reverse (1212223122321), we get a palindrome (2444436344442).

The spelling of 1232213222121 in words is "one trillion, two hundred thirty-two billion, two hundred thirteen million, two hundred twenty-two thousand, one hundred twenty-one".