122741222440 has 64 divisors (see below), whose sum is σ = 280697472000. Its totient is φ = 48295802880.

The previous prime is 122741222431. The next prime is 122741222467. The reversal of 122741222440 is 44222147221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784696 + ... + 928024.

It is an arithmetic number, because the mean of its divisors is an integer number (4385898000).

Almost surely, 2^122741222440 is an apocalyptic number.

122741222440 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 122741222440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140348736000).

122741222440 is an abundant number, since it is smaller than the sum of its proper divisors (157956249560).

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

122741222440 is a wasteful number, since it uses less digits than its factorization.

122741222440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143690 (or 143686 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

Adding to 122741222440 its reverse (44222147221), we get a palindrome (166963369661).

The spelling of 122741222440 in words is "one hundred twenty-two billion, seven hundred forty-one million, two hundred twenty-two thousand, four hundred forty".