1222713805824 has 528 divisors, whose sum is σ = 4292013679200. Its totient is φ = 342735224832.

The previous prime is 1222713805801. The next prime is 1222713805913. The reversal of 1222713805824 is 4285083172221.

1222713805824 is a `hidden beast` number, since 12 + 2 + 27 + 1 + 38 + 0 + 582 + 4 = 666.

It is a super-2 number, since 2×1222713805824² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222713805824.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71793342 + ... + 71810370.

Almost surely, 2^{1222713805824} is an apocalyptic number.

1222713805824 is a gapful number since it is divisible by the number (14) 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 1222713805824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2146006839600).

1222713805824 is an abundant number, since it is smaller than the sum of its proper divisors (3069299873376).

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

1222713805824 is a wasteful number, since it uses less digits than its factorization.

1222713805824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17125 (or 17094 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 1222713805824 in words is "one trillion, two hundred twenty-two billion, seven hundred thirteen million, eight hundred five thousand, eight hundred twenty-four".