202110420140 has 24 divisors (see below), whose sum is σ = 424469744160. Its totient is φ = 80836956288.

The previous prime is 202110420121. The next prime is 202110420173. The reversal of 202110420140 is 41024011202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218000 + ... + 672119.

It is an arithmetic number, because the mean of its divisors is an integer number (17686239340).

Almost surely, 2^202110420140 is an apocalyptic number.

202110420140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202110420140 is an abundant number, since it is smaller than the sum of its proper divisors (222359324020).

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

202110420140 is a wasteful number, since it uses less digits than its factorization.

202110420140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901481 (or 901479 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202110420140 its reverse (41024011202), we get a palindrome (243134431342).

The spelling of 202110420140 in words is "two hundred two billion, one hundred ten million, four hundred twenty thousand, one hundred forty".