138222102 has 16 divisors (see below), whose sum is σ = 276777072. Its totient is φ = 46018560.

The previous prime is 138222083. The next prime is 138222103. The reversal of 138222102 is 201222831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138222103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8299 + ... + 18582.

It is an arithmetic number, because the mean of its divisors is an integer number (17298567).

Almost surely, 2^138222102 is an apocalyptic number.

138222102 is an abundant number, since it is smaller than the sum of its proper divisors (138554970).

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

138222102 is a wasteful number, since it uses less digits than its factorization.

138222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27743.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 138222102 is about 11756.7896128152. The cubic root of 138222102 is about 517.0420097880.

Adding to 138222102 its reverse (201222831), we get a palindrome (339444933).

The spelling of 138222102 in words is "one hundred thirty-eight million, two hundred twenty-two thousand, one hundred two".