1212000100099 has 2 divisors, whose sum is σ = 1212000100100. Its totient is φ = 1212000100098.

The previous prime is 1212000100093. The next prime is 1212000100133. The reversal of 1212000100099 is 9900010002121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212000100099 - 2⁵ = 1212000100067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212000100093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606000050049 + 606000050050.

It is an arithmetic number, because the mean of its divisors is an integer number (606000050050).

Almost surely, 2^{1212000100099} is an apocalyptic number.

1212000100099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212000100099 is an equidigital number, since it uses as much as digits as its factorization.

1212000100099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 1212000100099 in words is "one trillion, two hundred twelve billion, one hundred thousand, ninety-nine".