7212987190069 has 2 divisors, whose sum is σ = 7212987190070. Its totient is φ = 7212987190068.

The previous prime is 7212987190067. The next prime is 7212987190109. The reversal of 7212987190069 is 9600917892127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5128241051844 + 2084746138225 = 2264562^2 + 1443865^2 .

It is an emirp because it is prime and its reverse (9600917892127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7212987190069 - 2¹ = 7212987190067 is a prime.

It is a super-2 number, since 2×7212987190069² (a number of 27 digits) contains 22 as substring.

Together with 7212987190067, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7212987189989 and 7212987190016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7212987190067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606493595034 + 3606493595035.

It is an arithmetic number, because the mean of its divisors is an integer number (3606493595035).

Almost surely, 2^{7212987190069} is an apocalyptic number.

It is an amenable number.

7212987190069 is a deficient number, since it is larger than the sum of its proper divisors (1).

7212987190069 is an equidigital number, since it uses as much as digits as its factorization.

7212987190069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6858432, while the sum is 61.

The spelling of 7212987190069 in words is "seven trillion, two hundred twelve billion, nine hundred eighty-seven million, one hundred ninety thousand, sixty-nine".