1224790863912 has 384 divisors, whose sum is σ = 4365788544000. Its totient is φ = 300521041920.

The previous prime is 1224790863911. The next prime is 1224790863983. The reversal of 1224790863912 is 2193680974221.

1224790863912 is a `hidden beast` number, since 1 + 2 + 2 + 479 + 0 + 86 + 3 + 91 + 2 = 666.

It is a super-2 number, since 2×1224790863912² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1224790863911) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37167139 + ... + 37200077.

It is an arithmetic number, because the mean of its divisors is an integer number (11369241000).

Almost surely, 2^{1224790863912} is an apocalyptic number.

1224790863912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224790863912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2182894272000).

1224790863912 is an abundant number, since it is smaller than the sum of its proper divisors (3140997680088).

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

1224790863912 is a wasteful number, since it uses less digits than its factorization.

1224790863912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33341 (or 33334 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 1224790863912 in words is "one trillion, two hundred twenty-four billion, seven hundred ninety million, eight hundred sixty-three thousand, nine hundred twelve".