32121002213221 has 4 divisors (see below), whose sum is σ = 32132300493312. Its totient is φ = 32109703933132.

The previous prime is 32121002213149. The next prime is 32121002213231. The reversal of 32121002213221 is 12231220012123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32121002213221 - 2¹³ = 32121002205029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32121002213192 and 32121002213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32121002213231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5649135781 + ... + 5649141466.

It is an arithmetic number, because the mean of its divisors is an integer number (8033075123328).

Almost surely, 2^{32121002213221} is an apocalyptic number.

It is an amenable number.

32121002213221 is a deficient number, since it is larger than the sum of its proper divisors (11298280091).

32121002213221 is a wasteful number, since it uses less digits than its factorization.

32121002213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11298280090.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 32121002213221 its reverse (12231220012123), we get a palindrome (44352222225344).

The spelling of 32121002213221 in words is "thirty-two trillion, one hundred twenty-one billion, two million, two hundred thirteen thousand, two hundred twenty-one".