1212322232121 has 96 divisors (see below), whose sum is σ = 2245856573184. Its totient is φ = 565621056000.

The previous prime is 1212322232101. The next prime is 1212322232131.

1212322232121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1212322232121 - 2³⁴ = 1195142362937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212322232091 and 1212322232100.

It is not an unprimeable number, because it can be changed into a prime (1212322232101) 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 95 ways as a sum of consecutive naturals, for example, 726271 + ... + 1718171.

It is an arithmetic number, because the mean of its divisors is an integer number (23394339304).

Almost surely, 2^{1212322232121} is an apocalyptic number.

1212322232121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212322232121 is a deficient number, since it is larger than the sum of its proper divisors (1033534341063).

1212322232121 is a wasteful number, since it uses less digits than its factorization.

1212322232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991983 (or 991972 counting only the distinct ones).

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

The spelling of 1212322232121 in words is "one trillion, two hundred twelve billion, three hundred twenty-two million, two hundred thirty-two thousand, one hundred twenty-one".