1212310011121 has 12 divisors (see below), whose sum is σ = 1402672742800. Its totient is φ = 1044094744440.

The previous prime is 1212310011089. The next prime is 1212310011151. The reversal of 1212310011121 is 1211100132121.

It is a happy number.

It is not a de Polignac number, because 1212310011121 - 2⁵ = 1212310011089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212310011095 and 1212310011104.

It is not an unprimeable number, because it can be changed into a prime (1212310011151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263657991 + ... + 263662588.

Almost surely, 2^{1212310011121} is an apocalyptic number.

1212310011121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212310011121 is a deficient number, since it is larger than the sum of its proper divisors (190362731679).

1212310011121 is a wasteful number, since it uses less digits than its factorization.

1212310011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527320620 (or 527320609 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1212310011121 its reverse (1211100132121), we get a palindrome (2423410143242).

The spelling of 1212310011121 in words is "one trillion, two hundred twelve billion, three hundred ten million, eleven thousand, one hundred twenty-one".