138885409880222 has 16 divisors (see below), whose sum is σ = 208443814871040. Its totient is φ = 69404148969912.

The previous prime is 138885409880213. The next prime is 138885409880267. The reversal of 138885409880222 is 222088904588831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23287679 + ... + 28637157.

It is an arithmetic number, because the mean of its divisors is an integer number (13027738429440).

Almost surely, 2^{138885409880222} is an apocalyptic number.

138885409880222 is a deficient number, since it is larger than the sum of its proper divisors (69558404990818).

138885409880222 is a wasteful number, since it uses less digits than its factorization.

138885409880222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356687.

The product of its (nonzero) digits is 141557760, while the sum is 68.

The spelling of 138885409880222 in words is "one hundred thirty-eight trillion, eight hundred eighty-five billion, four hundred nine million, eight hundred eighty thousand, two hundred twenty-two".