121102212424 has 16 divisors (see below), whose sum is σ = 229617960300. Its totient is φ = 59870756352.

The previous prime is 121102212421. The next prime is 121102212443. The reversal of 121102212424 is 424212201121.

It can be written as a sum of positive squares in 2 ways, for example, as 114662149924 + 6440062500 = 338618^2 + 80250^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121102212395 and 121102212404.

It is not an unprimeable number, because it can be changed into a prime (121102212421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85042977 + ... + 85044400.

Almost surely, 2^121102212424 is an apocalyptic number.

It is an amenable number.

121102212424 is a deficient number, since it is larger than the sum of its proper divisors (108515747876).

121102212424 is a wasteful number, since it uses less digits than its factorization.

121102212424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170087472 (or 170087468 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121102212424 its reverse (424212201121), we get a palindrome (545314413545).

The spelling of 121102212424 in words is "one hundred twenty-one billion, one hundred two million, two hundred twelve thousand, four hundred twenty-four".