121022221113 has 24 divisors (see below), whose sum is σ = 177710010816. Its totient is φ = 79353540000.

The previous prime is 121022221087. The next prime is 121022221129. The reversal of 121022221113 is 311122220121.

It is not a de Polignac number, because 121022221113 - 2¹³ = 121022212921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121022221513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303595 + ... + 578112.

It is an arithmetic number, because the mean of its divisors is an integer number (7404583784).

Almost surely, 2^121022221113 is an apocalyptic number.

It is an amenable number.

121022221113 is a deficient number, since it is larger than the sum of its proper divisors (56687789703).

121022221113 is a wasteful number, since it uses less digits than its factorization.

121022221113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881965 (or 881962 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121022221113 its reverse (311122220121), we get a palindrome (432144441234).

The spelling of 121022221113 in words is "one hundred twenty-one billion, twenty-two million, two hundred twenty-one thousand, one hundred thirteen".