1216286701924 has 48 divisors (see below), whose sum is σ = 2516662310400. Its totient is φ = 503249636736.

The previous prime is 1216286701909. The next prime is 1216286701939. The reversal of 1216286701924 is 4291076826121.

It is an interprime number because it is at equal distance from previous prime (1216286701909) and next prime (1216286701939).

It is a super-2 number, since 2×1216286701924² (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 15 ways as a sum of consecutive naturals, for example, 11044437 + ... + 11154019.

It is an arithmetic number, because the mean of its divisors is an integer number (52430464800).

Almost surely, 2^{1216286701924} is an apocalyptic number.

1216286701924 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1216286701924 is an abundant number, since it is smaller than the sum of its proper divisors (1300375608476).

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

1216286701924 is a wasteful number, since it uses less digits than its factorization.

1216286701924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123292 (or 123290 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 1216286701924 in words is "one trillion, two hundred sixteen billion, two hundred eighty-six million, seven hundred one thousand, nine hundred twenty-four".