1210222101709 has 2 divisors, whose sum is σ = 1210222101710. Its totient is φ = 1210222101708.

The previous prime is 1210222101703. The next prime is 1210222101743. The reversal of 1210222101709 is 9071012220121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1207559232100 + 2662869609 = 1098890^2 + 51603^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210222101709 - 2¹⁵ = 1210222068941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210222101703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605111050854 + 605111050855.

It is an arithmetic number, because the mean of its divisors is an integer number (605111050855).

Almost surely, 2^{1210222101709} is an apocalyptic number.

It is an amenable number.

1210222101709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210222101709 is an equidigital number, since it uses as much as digits as its factorization.

1210222101709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 1210222101709 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, one hundred one thousand, seven hundred nine".