40221130122 has 128 divisors (see below), whose sum is σ = 93407892480. Its totient is φ = 12980072448.

The previous prime is 40221130121. The next prime is 40221130151. The reversal of 40221130122 is 22103112204.

It is a happy number.

40221130122 is a `hidden beast` number, since 402 + 211 + 30 + 1 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40221130095 and 40221130104.

It is not an unprimeable number, because it can be changed into a prime (40221130121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19940058 + ... + 19942074.

It is an arithmetic number, because the mean of its divisors is an integer number (729749160).

Almost surely, 2^40221130122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40221130122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46703946240).

40221130122 is an abundant number, since it is smaller than the sum of its proper divisors (53186762358).

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

40221130122 is an equidigital number, since it uses as much as digits as its factorization.

40221130122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184 (or 2166 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 40221130122 its reverse (22103112204), we get a palindrome (62324242326).

The spelling of 40221130122 in words is "forty billion, two hundred twenty-one million, one hundred thirty thousand, one hundred twenty-two".