138022422912 has 384 divisors, whose sum is σ = 465826982400. Its totient is φ = 38777425920.

The previous prime is 138022422911. The next prime is 138022422961. The reversal of 138022422912 is 219224220831.

It is a happy number.

138022422912 is a `hidden beast` number, since 1 + 380 + 2 + 242 + 29 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138022422911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11309998 + ... + 11322194.

It is an arithmetic number, because the mean of its divisors is an integer number (1213091100).

Almost surely, 2^138022422912 is an apocalyptic number.

138022422912 is a gapful number since it is divisible by the number (12) 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 138022422912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232913491200).

138022422912 is an abundant number, since it is smaller than the sum of its proper divisors (327804559488).

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

138022422912 is a wasteful number, since it uses less digits than its factorization.

138022422912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12294 (or 12279 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 138022422912 in words is "one hundred thirty-eight billion, twenty-two million, four hundred twenty-two thousand, nine hundred twelve".