12206721242 has 16 divisors (see below), whose sum is σ = 19406226240. Its totient is φ = 5738685888.

The previous prime is 12206721227. The next prime is 12206721251. The reversal of 12206721242 is 24212760221.

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, 141518 + ... + 210809.

It is an arithmetic number, because the mean of its divisors is an integer number (1212889140).

Almost surely, 2^12206721242 is an apocalyptic number.

12206721242 is a deficient number, since it is larger than the sum of its proper divisors (7199504998).

12206721242 is a wasteful number, since it uses less digits than its factorization.

12206721242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353365.

The product of its (nonzero) digits is 5376, while the sum is 29.

The spelling of 12206721242 in words is "twelve billion, two hundred six million, seven hundred twenty-one thousand, two hundred forty-two".