140212420220 has 96 divisors (see below), whose sum is σ = 301277200896. Its totient is φ = 54800480000.

The previous prime is 140212420213. The next prime is 140212420223. The reversal of 140212420220 is 22024212041.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 140212420192 and 140212420201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140212420223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80906474 + ... + 80908206.

It is an arithmetic number, because the mean of its divisors is an integer number (3138304176).

Almost surely, 2^140212420220 is an apocalyptic number.

140212420220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140212420220 is an abundant number, since it is smaller than the sum of its proper divisors (161064780676).

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

140212420220 is a wasteful number, since it uses less digits than its factorization.

140212420220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291 (or 2289 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 140212420220 its reverse (22024212041), we get a palindrome (162236632261).

The spelling of 140212420220 in words is "one hundred forty billion, two hundred twelve million, four hundred twenty thousand, two hundred twenty".