1212020200049 has 2 divisors, whose sum is σ = 1212020200050. Its totient is φ = 1212020200048.

The previous prime is 1212020199989. The next prime is 1212020200103. The reversal of 1212020200049 is 9400020202121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1114586947600 + 97433252449 = 1055740^2 + 312143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212020200049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212020199997 and 1212020200033.

It is not a weakly prime, because it can be changed into another prime (1212020202049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606010100024 + 606010100025.

It is an arithmetic number, because the mean of its divisors is an integer number (606010100025).

Almost surely, 2^{1212020200049} is an apocalyptic number.

It is an amenable number.

1212020200049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212020200049 is an equidigital number, since it uses as much as digits as its factorization.

1212020200049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 1212020200049 in words is "one trillion, two hundred twelve billion, twenty million, two hundred thousand, forty-nine".