21202243411140 has 144 divisors (see below), whose sum is σ = 70664901128640. Its totient is φ = 5102959760640.

The previous prime is 21202243411103. The next prime is 21202243411163. The reversal of 21202243411140 is 4111434220212.

21202243411140 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 2 + 243 + 411 + 1 + 4 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38243499 + ... + 38793938.

It is an arithmetic number, because the mean of its divisors is an integer number (490728480060).

Almost surely, 2^{21202243411140} is an apocalyptic number.

21202243411140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21202243411140 is an abundant number, since it is smaller than the sum of its proper divisors (49462657717500).

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

21202243411140 is a wasteful number, since it uses less digits than its factorization.

21202243411140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77037602 (or 77037597 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 21202243411140 its reverse (4111434220212), we get a palindrome (25313677631352).

The spelling of 21202243411140 in words is "twenty-one trillion, two hundred two billion, two hundred forty-three million, four hundred eleven thousand, one hundred forty".