21213363201122 has 8 divisors (see below), whose sum is σ = 31820193205356. Its totient is φ = 10606632132672.

The previous prime is 21213363201049. The next prime is 21213363201133. The reversal of 21213363201122 is 22110236331212.

It can be written as a sum of positive squares in 2 ways, for example, as 18523202291881 + 2690160909241 = 4303859^2 + 1640171^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24195563 + ... + 25056974.

Almost surely, 2^{21213363201122} is an apocalyptic number.

21213363201122 is a deficient number, since it is larger than the sum of its proper divisors (10606830004234).

21213363201122 is a wasteful number, since it uses less digits than its factorization.

21213363201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49467892.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 21213363201122 its reverse (22110236331212), we get a palindrome (43323599532334).

The spelling of 21213363201122 in words is "twenty-one trillion, two hundred thirteen billion, three hundred sixty-three million, two hundred one thousand, one hundred twenty-two".