20121101120999 has 2 divisors, whose sum is σ = 20121101121000. Its totient is φ = 20121101120998.

The previous prime is 20121101120977. The next prime is 20121101121067. The reversal of 20121101120999 is 99902110112102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20121101120999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20121101150999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060550560499 + 10060550560500.

It is an arithmetic number, because the mean of its divisors is an integer number (10060550560500).

Almost surely, 2^{20121101120999} is an apocalyptic number.

20121101120999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121101120999 is an equidigital number, since it uses as much as digits as its factorization.

20121101120999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 20121101120999 in words is "twenty trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty thousand, nine hundred ninety-nine".