21140420012322 has 32 divisors (see below), whose sum is σ = 45536430562560. Its totient is φ = 6504284872320.

The previous prime is 21140420012293. The next prime is 21140420012353. The reversal of 21140420012322 is 22321002404112.

It is a junction number, because it is equal to n+sod(n) for n = 21140420012292 and 21140420012301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8466579 + ... + 10675382.

It is an arithmetic number, because the mean of its divisors is an integer number (1423013455080).

Almost surely, 2^{21140420012322} is an apocalyptic number.

21140420012322 is an abundant number, since it is smaller than the sum of its proper divisors (24396010550238).

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

21140420012322 is a wasteful number, since it uses less digits than its factorization.

21140420012322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19156138.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21140420012322 its reverse (22321002404112), we get a palindrome (43461422416434).

The spelling of 21140420012322 in words is "twenty-one trillion, one hundred forty billion, four hundred twenty million, twelve thousand, three hundred twenty-two".