1212202220987 has 2 divisors, whose sum is σ = 1212202220988. Its totient is φ = 1212202220986.

The previous prime is 1212202220963. The next prime is 1212202221011. The reversal of 1212202220987 is 7890222022121.

It is a balanced prime because it is at equal distance from previous prime (1212202220963) and next prime (1212202221011).

It is an emirp because it is prime and its reverse (7890222022121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212202220987 - 2⁶ = 1212202220923 is a prime.

It is a super-3 number, since 3×1212202220987³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212202220987.

It is not a weakly prime, because it can be changed into another prime (1212222220987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606101110493 + 606101110494.

It is an arithmetic number, because the mean of its divisors is an integer number (606101110494).

Almost surely, 2^{1212202220987} is an apocalyptic number.

1212202220987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212202220987 is an equidigital number, since it uses as much as digits as its factorization.

1212202220987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 1212202220987 in words is "one trillion, two hundred twelve billion, two hundred two million, two hundred twenty thousand, nine hundred eighty-seven".