122213212344 has 128 divisors (see below), whose sum is σ = 354553459200. Its totient is φ = 38932185600.

The previous prime is 122213212343. The next prime is 122213212349. The reversal of 122213212344 is 443212312221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122213212343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5956327 + ... + 5976809.

It is an arithmetic number, because the mean of its divisors is an integer number (2769948900).

Almost surely, 2^122213212344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122213212344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177276729600).

122213212344 is an abundant number, since it is smaller than the sum of its proper divisors (232340246856).

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

122213212344 is a wasteful number, since it uses less digits than its factorization.

122213212344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21722 (or 21712 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 122213212344 its reverse (443212312221), we get a palindrome (565425524565).

The spelling of 122213212344 in words is "one hundred twenty-two billion, two hundred thirteen million, two hundred twelve thousand, three hundred forty-four".