1212220000087 has 2 divisors, whose sum is σ = 1212220000088. Its totient is φ = 1212220000086.

The previous prime is 1212220000021. The next prime is 1212220000109. The reversal of 1212220000087 is 7800000222121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212220000087 - 2³⁹ = 662464186199 is a prime.

It is a super-2 number, since 2×1212220000087² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212220900087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606110000043 + 606110000044.

It is an arithmetic number, because the mean of its divisors is an integer number (606110000044).

Almost surely, 2^{1212220000087} is an apocalyptic number.

1212220000087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212220000087 is an equidigital number, since it uses as much as digits as its factorization.

1212220000087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

The spelling of 1212220000087 in words is "one trillion, two hundred twelve billion, two hundred twenty million, eighty-seven", and thus it is an aban number.