21323142022 has 48 divisors (see below), whose sum is σ = 39623288832. Its totient is φ = 8426751840.

The previous prime is 21323141981. The next prime is 21323142037. The reversal of 21323142022 is 22024132312.

It is a junction number, because it is equal to n+sod(n) for n = 21323141984 and 21323142002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2567697 + ... + 2575987.

It is an arithmetic number, because the mean of its divisors is an integer number (825485184).

Almost surely, 2^21323142022 is an apocalyptic number.

21323142022 is a deficient number, since it is larger than the sum of its proper divisors (18300146810).

21323142022 is a wasteful number, since it uses less digits than its factorization.

21323142022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9413 (or 9400 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21323142022 its reverse (22024132312), we get a palindrome (43347274334).

The spelling of 21323142022 in words is "twenty-one billion, three hundred twenty-three million, one hundred forty-two thousand, twenty-two".