1121277681216 has 945 divisors, whose sum is σ = 4272302805771. Its totient is φ = 289716134400.

The previous prime is 1121277681157. The next prime is 1121277681221. The reversal of 1121277681216 is 6121867721211.

The square root of 1121277681216 is 1058904.

It is a perfect power (a square), and thus also a powerful number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 5870563681 + ... + 5870563871.

Almost surely, 2^{1121277681216} is an apocalyptic number.

1121277681216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1121277681216 is the 1058904-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121277681216

1121277681216 is an abundant number, since it is smaller than the sum of its proper divisors (3151025124555).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121277681216 is an equidigital number, since it uses as much as digits as its factorization.

1121277681216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 214 counting only the distinct ones).

The product of its digits is 112896, while the sum is 45.

The spelling of 1121277681216 in words is "one trillion, one hundred twenty-one billion, two hundred seventy-seven million, six hundred eighty-one thousand, two hundred sixteen".