1399223777112 has 192 divisors, whose sum is σ = 4556906496000. Its totient is φ = 396629980992.

The previous prime is 1399223777093. The next prime is 1399223777123. The reversal of 1399223777112 is 2117773229931.

1399223777112 is a `hidden beast` number, since 1 + 399 + 2 + 237 + 7 + 7 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is a congruent number.

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, 823689 + ... + 1864647.

It is an arithmetic number, because the mean of its divisors is an integer number (23733888000).

Almost surely, 2^{1399223777112} is an apocalyptic number.

1399223777112 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 1399223777112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2278453248000).

1399223777112 is an abundant number, since it is smaller than the sum of its proper divisors (3157682718888).

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

1399223777112 is a wasteful number, since it uses less digits than its factorization.

1399223777112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041115 (or 1041098 counting only the distinct ones).

The product of its digits is 2000376, while the sum is 54.

The spelling of 1399223777112 in words is "one trillion, three hundred ninety-nine billion, two hundred twenty-three million, seven hundred seventy-seven thousand, one hundred twelve".