1212424101 has 36 divisors (see below), whose sum is σ = 2048716800. Its totient is φ = 688898448.

The previous prime is 1212424091. The next prime is 1212424111. The reversal of 1212424101 is 1014242121.

1212424101 is a `hidden beast` number, since 1 + 212 + 42 + 410 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1212424091) and next prime (1212424111).

It is not a de Polignac number, because 1212424101 - 2¹⁰ = 1212423077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212424111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 71260 + ... + 86618.

It is an arithmetic number, because the mean of its divisors is an integer number (56908800).

Almost surely, 2^1212424101 is an apocalyptic number.

It is an amenable number.

1212424101 is a deficient number, since it is larger than the sum of its proper divisors (836292699).

1212424101 is a wasteful number, since it uses less digits than its factorization.

1212424101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15558 (or 15548 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1212424101 is about 34819.8808297788. The cubic root of 1212424101 is about 1066.3133674448.

Adding to 1212424101 its reverse (1014242121), we get a palindrome (2226666222).

The spelling of 1212424101 in words is "one billion, two hundred twelve million, four hundred twenty-four thousand, one hundred one".