1123222012000 has 192 divisors, whose sum is σ = 3169100712960. Its totient is φ = 386947008000.

The previous prime is 1123222011971. The next prime is 1123222012013. The reversal of 1123222012000 is 2102223211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164217 + ... + 1507783.

It is an arithmetic number, because the mean of its divisors is an integer number (16505732880).

Almost surely, 2^{1123222012000} is an apocalyptic number.

1123222012000 is a gapful number since it is divisible by the number (10) 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 1123222012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1584550356480).

1123222012000 is an abundant number, since it is smaller than the sum of its proper divisors (2045878700960).

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

1123222012000 is a wasteful number, since it uses less digits than its factorization.

1123222012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343622 (or 1343604 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1123222012000 its reverse (2102223211), we get a palindrome (1125324235211).

The spelling of 1123222012000 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-two million, twelve thousand".