1223332404100 has 144 divisors (see below), whose sum is σ = 2695571222400. Its totient is φ = 481864320000.

The previous prime is 1223332404089. The next prime is 1223332404143. The reversal of 1223332404100 is 14042333221.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 971669271 + ... + 971670529.

It is an arithmetic number, because the mean of its divisors is an integer number (18719244600).

Almost surely, 2^{1223332404100} is an apocalyptic number.

1223332404100 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 1223332404100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347785611200).

1223332404100 is an abundant number, since it is smaller than the sum of its proper divisors (1472238818300).

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

1223332404100 is a wasteful number, since it uses less digits than its factorization.

1223332404100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1927 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1223332404100 its reverse (14042333221), we get a palindrome (1237374737321).

The spelling of 1223332404100 in words is "one trillion, two hundred twenty-three billion, three hundred thirty-two million, four hundred four thousand, one hundred".