351221225200 has 60 divisors (see below), whose sum is σ = 846790923688. Its totient is φ = 139992019200.

The previous prime is 351221225191. The next prime is 351221225231. The reversal of 351221225200 is 2522122153.

It is a super-4 number, since 4×351221225200⁴ (a number of 47 digits) contains 4444 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1438131 + ... + 1664530.

Almost surely, 2^351221225200 is an apocalyptic number.

It is an amenable number.

351221225200 is an abundant number, since it is smaller than the sum of its proper divisors (495569698488).

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

351221225200 is a wasteful number, since it uses less digits than its factorization.

351221225200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102962 (or 3102951 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 351221225200 its reverse (2522122153), we get a palindrome (353743347353).

The spelling of 351221225200 in words is "three hundred fifty-one billion, two hundred twenty-one million, two hundred twenty-five thousand, two hundred".