351222022224 has 120 divisors (see below), whose sum is σ = 1003322560032. Its totient is φ = 114653710080.

The previous prime is 351222022223. The next prime is 351222022241. The reversal of 351222022224 is 422220222153.

It is a happy number.

It is a super-3 number, since 3×351222022224³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351222022223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4132639 + ... + 4216769.

Almost surely, 2^351222022224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 351222022224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501661280016).

351222022224 is an abundant number, since it is smaller than the sum of its proper divisors (652100537808).

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

351222022224 is a wasteful number, since it uses less digits than its factorization.

351222022224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84745 (or 84736 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 351222022224 its reverse (422220222153), we get a palindrome (773442244377).

The spelling of 351222022224 in words is "three hundred fifty-one billion, two hundred twenty-two million, twenty-two thousand, two hundred twenty-four".