1212000100019 has 2 divisors, whose sum is σ = 1212000100020. Its totient is φ = 1212000100018.

The previous prime is 1212000099901. The next prime is 1212000100067. The reversal of 1212000100019 is 9100010002121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212000100019 - 2³² = 1207705132723 is a prime.

It is a super-2 number, since 2×1212000100019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212000100099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606000050009 + 606000050010.

It is an arithmetic number, because the mean of its divisors is an integer number (606000050010).

Almost surely, 2^{1212000100019} is an apocalyptic number.

1212000100019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212000100019 is an equidigital number, since it uses as much as digits as its factorization.

1212000100019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 1212000100019 in words is "one trillion, two hundred twelve billion, one hundred thousand, nineteen".