1212277168320 has 56 divisors (see below), whose sum is σ = 3848980012464. Its totient is φ = 323273911296.

The previous prime is 1212277168309. The next prime is 1212277168357. The reversal of 1212277168320 is 238617722121.

It is a happy number.

It is a super-2 number, since 2×1212277168320² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631393399 + ... + 631395318.

Almost surely, 2^{1212277168320} is an apocalyptic number.

1212277168320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212277168320 is an abundant number, since it is smaller than the sum of its proper divisors (2636702844144).

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

1212277168320 is a wasteful number, since it uses less digits than its factorization.

1212277168320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262788737 (or 1262788727 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 1212277168320 in words is "one trillion, two hundred twelve billion, two hundred seventy-seven million, one hundred sixty-eight thousand, three hundred twenty".