122153344446 has 128 divisors (see below), whose sum is σ = 291731668992. Its totient is φ = 33365520000.

The previous prime is 122153344367. The next prime is 122153344451. The reversal of 122153344446 is 644443351221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37549356 + ... + 37552608.

It is an arithmetic number, because the mean of its divisors is an integer number (2279153664).

Almost surely, 2^122153344446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122153344446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145865834496).

122153344446 is an abundant number, since it is smaller than the sum of its proper divisors (169578324546).

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

122153344446 is a wasteful number, since it uses less digits than its factorization.

122153344446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638.

The product of its digits is 276480, while the sum is 39.

Adding to 122153344446 its reverse (644443351221), we get a palindrome (766596695667).

The spelling of 122153344446 in words is "one hundred twenty-two billion, one hundred fifty-three million, three hundred forty-four thousand, four hundred forty-six".