1213332103200 has 144 divisors (see below), whose sum is σ = 4513595486400. Its totient is φ = 277333048320.

The previous prime is 1213332103199. The next prime is 1213332103211. The reversal of 1213332103200 is 23012333121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36094275 + ... + 36127874.

It is an arithmetic number, because the mean of its divisors is an integer number (31344413100).

Almost surely, 2^{1213332103200} is an apocalyptic number.

1213332103200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213332103200 is an abundant number, since it is smaller than the sum of its proper divisors (3300263383200).

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

1213332103200 is a wasteful number, since it uses less digits than its factorization.

1213332103200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72222179 (or 72222166 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1213332103200 its reverse (23012333121), we get a palindrome (1236344436321).

The spelling of 1213332103200 in words is "one trillion, two hundred thirteen billion, three hundred thirty-two million, one hundred three thousand, two hundred".