120122421040 has 80 divisors (see below), whose sum is σ = 289465133760. Its totient is φ = 46321320960.

The previous prime is 120122420989. The next prime is 120122421113. The reversal of 120122421040 is 40124221021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×120122421040² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120122420999 and 120122421017.

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, 136485 + ... + 508795.

It is an arithmetic number, because the mean of its divisors is an integer number (3618314172).

Almost surely, 2^120122421040 is an apocalyptic number.

120122421040 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 120122421040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144732566880).

120122421040 is an abundant number, since it is smaller than the sum of its proper divisors (169342712720).

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

120122421040 is a wasteful number, since it uses less digits than its factorization.

120122421040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372470 (or 372464 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 120122421040 its reverse (40124221021), we get a palindrome (160246642061).

The spelling of 120122421040 in words is "one hundred twenty billion, one hundred twenty-two million, four hundred twenty-one thousand, forty".