1223342120000 has 560 divisors, whose sum is σ = 4073072099712. Its totient is φ = 351959040000.

The previous prime is 1223342119999. The next prime is 1223342120027. The reversal of 1223342120000 is 212433221.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 40024724 + ... + 40055276.

Almost surely, 2^{1223342120000} is an apocalyptic number.

1223342120000 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 1223342120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2036536049856).

1223342120000 is an abundant number, since it is smaller than the sum of its proper divisors (2849729979712).

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

1223342120000 is a wasteful number, since it uses less digits than its factorization.

1223342120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30616 (or 30591 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1223342120000 its reverse (212433221), we get a palindrome (1223554553221).

The spelling of 1223342120000 in words is "one trillion, two hundred twenty-three billion, three hundred forty-two million, one hundred twenty thousand".