1210107782281 has 2 divisors, whose sum is σ = 1210107782282. Its totient is φ = 1210107782280.

The previous prime is 1210107782243. The next prime is 1210107782287. The reversal of 1210107782281 is 1822877010121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1204857475600 + 5250306681 = 1097660^2 + 72459^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210107782281 - 2³⁷ = 1072668828809 is a prime.

It is a super-2 number, since 2×1210107782281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1210107782287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605053891140 + 605053891141.

It is an arithmetic number, because the mean of its divisors is an integer number (605053891141).

Almost surely, 2^{1210107782281} is an apocalyptic number.

It is an amenable number.

1210107782281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210107782281 is an equidigital number, since it uses as much as digits as its factorization.

1210107782281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 40.

The spelling of 1210107782281 in words is "one trillion, two hundred ten billion, one hundred seven million, seven hundred eighty-two thousand, two hundred eighty-one".