1212076869121 has 4 divisors (see below), whose sum is σ = 1219083093972. Its totient is φ = 1205070644272.

The previous prime is 1212076869067. The next prime is 1212076869127. The reversal of 1212076869121 is 1219686702121.

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 988362058896 + 223714810225 = 994164^2 + 472985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212076869121 - 2²⁵ = 1212043314689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212076869127) 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, 3503112166 + ... + 3503112511.

It is an arithmetic number, because the mean of its divisors is an integer number (304770773493).

Almost surely, 2^{1212076869121} is an apocalyptic number.

It is an amenable number.

1212076869121 is a deficient number, since it is larger than the sum of its proper divisors (7006224851).

1212076869121 is an equidigital number, since it uses as much as digits as its factorization.

1212076869121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7006224850.

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 1212076869121 in words is "one trillion, two hundred twelve billion, seventy-six million, eight hundred sixty-nine thousand, one hundred twenty-one".