145522222200 has 288 divisors, whose sum is σ = 497592192240. Its totient is φ = 38103091200.

The previous prime is 145522222187. The next prime is 145522222201. The reversal of 145522222200 is 2222225541.

It is a happy number.

145522222200 is a `hidden beast` number, since 1 + 455 + 2 + 2 + 2 + 2 + 2 + 200 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145522222201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 113422759 + ... + 113424041.

Almost surely, 2^145522222200 is an apocalyptic number.

145522222200 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 145522222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248796096120).

145522222200 is an abundant number, since it is smaller than the sum of its proper divisors (352069970040).

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

145522222200 is a wasteful number, since it uses less digits than its factorization.

145522222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 145522222200 its reverse (2222225541), we get a palindrome (147744447741).

The spelling of 145522222200 in words is "one hundred forty-five billion, five hundred twenty-two million, two hundred twenty-two thousand, two hundred".