122420001320440 has 128 divisors (see below), whose sum is σ = 278023687200000. Its totient is φ = 48511151428608.

The previous prime is 122420001320401. The next prime is 122420001320447. The reversal of 122420001320440 is 44023100024221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122420001320447) 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, 10952844132 + ... + 10952855308.

It is an arithmetic number, because the mean of its divisors is an integer number (2172060056250).

Almost surely, 2^{122420001320440} is an apocalyptic number.

122420001320440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122420001320440 is an abundant number, since it is smaller than the sum of its proper divisors (155603685879560).

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

122420001320440 is a wasteful number, since it uses less digits than its factorization.

122420001320440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15389 (or 15385 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 122420001320440 its reverse (44023100024221), we get a palindrome (166443101344661).

The spelling of 122420001320440 in words is "one hundred twenty-two trillion, four hundred twenty billion, one million, three hundred twenty thousand, four hundred forty".