23221221322340 has 12 divisors (see below), whose sum is σ = 48764564776956. Its totient is φ = 9288488528928.

The previous prime is 23221221322333. The next prime is 23221221322417. The reversal of 23221221322340 is 4322312212232.

It can be written as a sum of positive squares in 2 ways, for example, as 8836208075776 + 14385013246564 = 2972576^2 + 3792758^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580530533039 + ... + 580530533078.

It is an arithmetic number, because the mean of its divisors is an integer number (4063713731413).

Almost surely, 2^{23221221322340} is an apocalyptic number.

23221221322340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23221221322340 is an abundant number, since it is smaller than the sum of its proper divisors (25543343454616).

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

23221221322340 is a wasteful number, since it uses less digits than its factorization.

23221221322340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161061066126 (or 1161061066124 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 23221221322340 its reverse (4322312212232), we get a palindrome (27543533534572).

The spelling of 23221221322340 in words is "twenty-three trillion, two hundred twenty-one billion, two hundred twenty-one million, three hundred twenty-two thousand, three hundred forty".