1212212112073 has 2 divisors, whose sum is σ = 1212212112074. Its totient is φ = 1212212112072.

The previous prime is 1212212112037. The next prime is 1212212112103. The reversal of 1212212112073 is 3702112122121.

Together with previous prime (1212212112037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1152709291449 + 59502820624 = 1073643^2 + 243932^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212212112073 - 2³³ = 1203622177481 is a prime.

It is a super-3 number, since 3×1212212112073³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1212212112173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606106056036 + 606106056037.

It is an arithmetic number, because the mean of its divisors is an integer number (606106056037).

Almost surely, 2^{1212212112073} is an apocalyptic number.

It is an amenable number.

1212212112073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212212112073 is an equidigital number, since it uses as much as digits as its factorization.

1212212112073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 1212212112073 its reverse (3702112122121), we get a palindrome (4914324234194).

The spelling of 1212212112073 in words is "one trillion, two hundred twelve billion, two hundred twelve million, one hundred twelve thousand, seventy-three".