12210020042 has 16 divisors (see below), whose sum is σ = 19989165312. Its totient is φ = 5547472320.

The previous prime is 12210019999. The next prime is 12210020071. The reversal of 12210020042 is 24002001221.

It is a junction number, because it is equal to n+sod(n) for n = 12210019999 and 12210020026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77183 + ... + 174290.

It is an arithmetic number, because the mean of its divisors is an integer number (1249322832).

Almost surely, 2^12210020042 is an apocalyptic number.

12210020042 is a deficient number, since it is larger than the sum of its proper divisors (7779145270).

12210020042 is a wasteful number, since it uses less digits than its factorization.

12210020042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253693.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12210020042 its reverse (24002001221), we get a palindrome (36212021263).

The spelling of 12210020042 in words is "twelve billion, two hundred ten million, twenty thousand, forty-two".