121232212113 has 8 divisors (see below), whose sum is σ = 161647208800. Its totient is φ = 80819345088.

The previous prime is 121232212099. The next prime is 121232212133. The reversal of 121232212113 is 311212232121.

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

It is not a de Polignac number, because 121232212113 - 2⁴ = 121232212097 is a prime.

It is a super-2 number, since 2×121232212113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121232212113.

It is not an unprimeable number, because it can be changed into a prime (121232212133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394483 + ... + 630936.

It is an arithmetic number, because the mean of its divisors is an integer number (20205901100).

Almost surely, 2^121232212113 is an apocalyptic number.

It is an amenable number.

121232212113 is a deficient number, since it is larger than the sum of its proper divisors (40414996687).

121232212113 is a wasteful number, since it uses less digits than its factorization.

121232212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064831.

The product of its digits is 288, while the sum is 21.

Adding to 121232212113 its reverse (311212232121), we get a palindrome (432444444234).

The spelling of 121232212113 in words is "one hundred twenty-one billion, two hundred thirty-two million, two hundred twelve thousand, one hundred thirteen".