122401244240 has 160 divisors (see below), whose sum is σ = 326606774400. Its totient is φ = 42245826560.

The previous prime is 122401244227. The next prime is 122401244263. The reversal of 122401244240 is 42442104221.

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 31 ways as a sum of consecutive naturals, for example, 1465034 + ... + 1546326.

It is an arithmetic number, because the mean of its divisors is an integer number (2041292340).

Almost surely, 2^122401244240 is an apocalyptic number.

122401244240 is a gapful number since it is divisible by the number (10) 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 122401244240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163303387200).

122401244240 is an abundant number, since it is smaller than the sum of its proper divisors (204205530160).

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

122401244240 is a wasteful number, since it uses less digits than its factorization.

122401244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81405 (or 81399 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 122401244240 its reverse (42442104221), we get a palindrome (164843348461).

The spelling of 122401244240 in words is "one hundred twenty-two billion, four hundred one million, two hundred forty-four thousand, two hundred forty".