123223221211200 has 672 divisors, whose sum is σ = 444180137401728. Its totient is φ = 29659029504000.

The previous prime is 123223221211199. The next prime is 123223221211217. The reversal of 123223221211200 is 2112122322321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12276892582 + ... + 12276902618.

It is an arithmetic number, because the mean of its divisors is an integer number (660982347324).

Almost surely, 2^{123223221211200} is an apocalyptic number.

123223221211200 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 123223221211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222090068700864).

123223221211200 is an abundant number, since it is smaller than the sum of its proper divisors (320956916190528).

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

123223221211200 is a wasteful number, since it uses less digits than its factorization.

123223221211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11711 (or 11696 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 123223221211200 its reverse (2112122322321), we get a palindrome (125335343533521).

The spelling of 123223221211200 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, two hundred twenty-one million, two hundred eleven thousand, two hundred".