122040043440 has 160 divisors (see below), whose sum is σ = 447279943680. Its totient is φ = 26932964352.

The previous prime is 122040043429. The next prime is 122040043457. The reversal of 122040043440 is 44340040221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 122040043440.

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, 1203744 + ... + 1301183.

It is an arithmetic number, because the mean of its divisors is an integer number (2795499648).

Almost surely, 2^122040043440 is an apocalyptic number.

122040043440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122040043440 is an abundant number, since it is smaller than the sum of its proper divisors (325239900240).

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

122040043440 is a wasteful number, since it uses less digits than its factorization.

122040043440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504979 (or 2504973 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 122040043440 its reverse (44340040221), we get a palindrome (166380083661).

The spelling of 122040043440 in words is "one hundred twenty-two billion, forty million, forty-three thousand, four hundred forty".