22121330213140 has 24 divisors (see below), whose sum is σ = 49187428357032. Its totient is φ = 8328030197760.

The previous prime is 22121330213137. The next prime is 22121330213167. The reversal of 22121330213140 is 4131203312122.

It can be written as a sum of positive squares in 4 ways, for example, as 1491984075024 + 20629346138116 = 1221468^2 + 4541954^2 .

It is a congruent number.

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, 32531367621 + ... + 32531368300.

It is an arithmetic number, because the mean of its divisors is an integer number (2049476181543).

Almost surely, 2^{22121330213140} is an apocalyptic number.

22121330213140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121330213140 is an abundant number, since it is smaller than the sum of its proper divisors (27066098143892).

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

22121330213140 is a wasteful number, since it uses less digits than its factorization.

22121330213140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65062735947 (or 65062735945 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 22121330213140 its reverse (4131203312122), we get a palindrome (26252533525262).

The spelling of 22121330213140 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred thirty million, two hundred thirteen thousand, one hundred forty".