22145044020240 has 160 divisors (see below), whose sum is σ = 72497469864960. Its totient is φ = 5580535510528.

The previous prime is 22145044020149. The next prime is 22145044020241. The reversal of 22145044020240 is 4202044054122.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22145044020198 and 22145044020207.

It is not an unprimeable number, because it can be changed into a prime (22145044020241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23709210 + ... + 24625529.

It is an arithmetic number, because the mean of its divisors is an integer number (453109186656).

Almost surely, 2^{22145044020240} is an apocalyptic number.

22145044020240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22145044020240 is an abundant number, since it is smaller than the sum of its proper divisors (50352425844720).

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

22145044020240 is a wasteful number, since it uses less digits than its factorization.

22145044020240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48334861 (or 48334855 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 22145044020240 its reverse (4202044054122), we get a palindrome (26347088074362).

The spelling of 22145044020240 in words is "twenty-two trillion, one hundred forty-five billion, forty-four million, twenty thousand, two hundred forty".