1212120111967 has 2 divisors, whose sum is σ = 1212120111968. Its totient is φ = 1212120111966.

The previous prime is 1212120111941. The next prime is 1212120112031. The reversal of 1212120111967 is 7691110212121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212120111967 - 2¹⁵ = 1212120079199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212120111667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606060055983 + 606060055984.

It is an arithmetic number, because the mean of its divisors is an integer number (606060055984).

Almost surely, 2^{1212120111967} is an apocalyptic number.

1212120111967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212120111967 is an equidigital number, since it uses as much as digits as its factorization.

1212120111967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 34.

The spelling of 1212120111967 in words is "one trillion, two hundred twelve billion, one hundred twenty million, one hundred eleven thousand, nine hundred sixty-seven".