20121212211059 has 2 divisors, whose sum is σ = 20121212211060. Its totient is φ = 20121212211058.

The previous prime is 20121212211053. The next prime is 20121212211271. The reversal of 20121212211059 is 95011221212102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20121212211059 is a prime.

It is not a weakly prime, because it can be changed into another prime (20121212211053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060606105529 + 10060606105530.

It is an arithmetic number, because the mean of its divisors is an integer number (10060606105530).

Almost surely, 2^{20121212211059} is an apocalyptic number.

20121212211059 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121212211059 is an equidigital number, since it uses as much as digits as its factorization.

20121212211059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 29.

The spelling of 20121212211059 in words is "twenty trillion, one hundred twenty-one billion, two hundred twelve million, two hundred eleven thousand, fifty-nine".