140022121124420 has 48 divisors (see below), whose sum is σ = 311568753385008. Its totient is φ = 52676039086080.

The previous prime is 140022121124341. The next prime is 140022121124429. The reversal of 140022121124420 is 24421121220041.

It can be written as a sum of positive squares in 8 ways, for example, as 12951692531716 + 127070428592704 = 3598846^2 + 11272552^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140022121124420.

It is not an unprimeable number, because it can be changed into a prime (140022121124429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148636097 + ... + 149575176.

It is an arithmetic number, because the mean of its divisors is an integer number (6491015695521).

Almost surely, 2^{140022121124420} is an apocalyptic number.

140022121124420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140022121124420 is an abundant number, since it is smaller than the sum of its proper divisors (171546632260588).

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

140022121124420 is a wasteful number, since it uses less digits than its factorization.

140022121124420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298212680 (or 298212678 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 140022121124420 its reverse (24421121220041), we get a palindrome (164443242344461).

The spelling of 140022121124420 in words is "one hundred forty trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty-four thousand, four hundred twenty".