1225421353200 has 480 divisors, whose sum is σ = 4347130765824. Its totient is φ = 295046400000.

The previous prime is 1225421353183. The next prime is 1225421353229. The reversal of 1225421353200 is 23531245221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 241174660 + ... + 241179740.

Almost surely, 2^{1225421353200} is an apocalyptic number.

1225421353200 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 1225421353200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2173565382912).

1225421353200 is an abundant number, since it is smaller than the sum of its proper divisors (3121709412624).

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

1225421353200 is a wasteful number, since it uses less digits than its factorization.

1225421353200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286 (or 5253 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1225421353200 its reverse (23531245221), we get a palindrome (1248952598421).

The spelling of 1225421353200 in words is "one trillion, two hundred twenty-five billion, four hundred twenty-one million, three hundred fifty-three thousand, two hundred".