1212012017101 has 2 divisors, whose sum is σ = 1212012017102. Its totient is φ = 1212012017100.

The previous prime is 1212012017077. The next prime is 1212012017107. The reversal of 1212012017101 is 1017102102121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 959077455625 + 252934561476 = 979325^2 + 502926^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212012017101 - 2¹⁵ = 1212011984333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212012017107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606006008550 + 606006008551.

It is an arithmetic number, because the mean of its divisors is an integer number (606006008551).

Almost surely, 2^{1212012017101} is an apocalyptic number.

It is an amenable number.

1212012017101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212012017101 is an equidigital number, since it uses as much as digits as its factorization.

1212012017101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 1212012017101 its reverse (1017102102121), we get a palindrome (2229114119222).

The spelling of 1212012017101 in words is "one trillion, two hundred twelve billion, twelve million, seventeen thousand, one hundred one".