20012221334 has 16 divisors (see below), whose sum is σ = 34311879936. Its totient is φ = 8575362600.

The previous prime is 20012221309. The next prime is 20012221343. The reversal of 20012221334 is 43312221002.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10172 + ... + 200319.

It is an arithmetic number, because the mean of its divisors is an integer number (2144492496).

Almost surely, 2^20012221334 is an apocalyptic number.

20012221334 is a deficient number, since it is larger than the sum of its proper divisors (14299658602).

20012221334 is a wasteful number, since it uses less digits than its factorization.

20012221334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217291.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20012221334 its reverse (43312221002), we get a palindrome (63324442336).

The spelling of 20012221334 in words is "twenty billion, twelve million, two hundred twenty-one thousand, three hundred thirty-four".