1225140222 has 8 divisors (see below), whose sum is σ = 2450280456. Its totient is φ = 408380072.

The previous prime is 1225140221. The next prime is 1225140233. The reversal of 1225140222 is 2220415221.

1225140222 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

1225140222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225140221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102095013 + ... + 102095024.

It is an arithmetic number, because the mean of its divisors is an integer number (306285057).

Almost surely, 2^1225140222 is an apocalyptic number.

1225140222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1225140222 is a wasteful number, since it uses less digits than its factorization.

1225140222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204190042.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1225140222 is about 35002.0031141076. The cubic root of 1225140222 is about 1070.0283050712.

Adding to 1225140222 its reverse (2220415221), we get a palindrome (3445555443).

The spelling of 1225140222 in words is "one billion, two hundred twenty-five million, one hundred forty thousand, two hundred twenty-two".