140445421212 has 96 divisors (see below), whose sum is σ = 337783944960. Its totient is φ = 45401175040.

The previous prime is 140445421201. The next prime is 140445421217. The reversal of 140445421212 is 212124544041.

It is a self number, because there is not a number n which added to its sum of digits gives 140445421212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140445421217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16041028 + ... + 16049780.

It is an arithmetic number, because the mean of its divisors is an integer number (3518582760).

Almost surely, 2^140445421212 is an apocalyptic number.

140445421212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140445421212 is an abundant number, since it is smaller than the sum of its proper divisors (197338523748).

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

140445421212 is a wasteful number, since it uses less digits than its factorization.

140445421212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9123 (or 9121 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 140445421212 its reverse (212124544041), we get a palindrome (352569965253).

The spelling of 140445421212 in words is "one hundred forty billion, four hundred forty-five million, four hundred twenty-one thousand, two hundred twelve".