1210772109469 has 4 divisors (see below), whose sum is σ = 1303908425596. Its totient is φ = 1117635793344.

The previous prime is 1210772109401. The next prime is 1210772109493. The reversal of 1210772109469 is 9649012770121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63409786969 + 1147362322500 = 251813^2 + 1071150^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210772109469 - 2⁷ = 1210772109341 is a prime.

It is a super-2 number, since 2×1210772109469² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210772109269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46568158044 + ... + 46568158069.

It is an arithmetic number, because the mean of its divisors is an integer number (325977106399).

Almost surely, 2^{1210772109469} is an apocalyptic number.

It is an amenable number.

1210772109469 is a deficient number, since it is larger than the sum of its proper divisors (93136316127).

1210772109469 is an equidigital number, since it uses as much as digits as its factorization.

1210772109469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93136316126.

The product of its (nonzero) digits is 381024, while the sum is 49.

The spelling of 1210772109469 in words is "one trillion, two hundred ten billion, seven hundred seventy-two million, one hundred nine thousand, four hundred sixty-nine".