20012112424242 has 32 divisors (see below), whose sum is σ = 44971039166400. Its totient is φ = 6595752407904.

The previous prime is 20012112424237. The next prime is 20012112424261. The reversal of 20012112424242 is 24242421121002.

20012112424242 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 211 + 2 + 424 + 24 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2081987748 + ... + 2081997359.

It is an arithmetic number, because the mean of its divisors is an integer number (1405344973950).

Almost surely, 2^{20012112424242} is an apocalyptic number.

20012112424242 is an abundant number, since it is smaller than the sum of its proper divisors (24958926742158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20012112424242 is a wasteful number, since it uses less digits than its factorization.

20012112424242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163985207 (or 4163985201 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 20012112424242 its reverse (24242421121002), we get a palindrome (44254533545244).

The spelling of 20012112424242 in words is "twenty trillion, twelve billion, one hundred twelve million, four hundred twenty-four thousand, two hundred forty-two".