121222231113 has 16 divisors (see below), whose sum is σ = 170143937280. Its totient is φ = 76558046544.

The previous prime is 121222231099. The next prime is 121222231171. The reversal of 121222231113 is 311132222121.

It is not a de Polignac number, because 121222231113 - 2¹³ = 121222222921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121222231113.

It is not an unprimeable number, because it can be changed into a prime (121222231213) 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 15 ways as a sum of consecutive naturals, for example, 2214370 + ... + 2268452.

It is an arithmetic number, because the mean of its divisors is an integer number (10633996080).

Almost surely, 2^121222231113 is an apocalyptic number.

It is an amenable number.

121222231113 is a deficient number, since it is larger than the sum of its proper divisors (48921706167).

121222231113 is a wasteful number, since it uses less digits than its factorization.

121222231113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93428.

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

Adding to 121222231113 its reverse (311132222121), we get a palindrome (432354453234).

The spelling of 121222231113 in words is "one hundred twenty-one billion, two hundred twenty-two million, two hundred thirty-one thousand, one hundred thirteen".