22143210213321 has 24 divisors (see below), whose sum is σ = 32013122363976. Its totient is φ = 14748994149120.

The previous prime is 22143210213287. The next prime is 22143210213349. The reversal of 22143210213321 is 12331201234122.

22143210213321 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 321 + 0 + 2 + 1 + 332 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6968570438025 + 15174639775296 = 2639805^2 + 3895464^2 .

It is not a de Polignac number, because 22143210213321 - 2³¹ = 22141062729673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22143210213221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 484797741 + ... + 484843413.

It is an arithmetic number, because the mean of its divisors is an integer number (1333880098499).

Almost surely, 2^{22143210213321} is an apocalyptic number.

It is an amenable number.

22143210213321 is a deficient number, since it is larger than the sum of its proper divisors (9869912150655).

22143210213321 is a wasteful number, since it uses less digits than its factorization.

22143210213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92473 (or 92470 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 22143210213321 its reverse (12331201234122), we get a palindrome (34474411447443).

The spelling of 22143210213321 in words is "twenty-two trillion, one hundred forty-three billion, two hundred ten million, two hundred thirteen thousand, three hundred twenty-one".