3221213230021 has 8 divisors (see below), whose sum is σ = 3244212639360. Its totient is φ = 3198280973328.

The previous prime is 3221213229901. The next prime is 3221213230049. The reversal of 3221213230021 is 1200323121223.

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

It is a cyclic number.

It is not a de Polignac number, because 3221213230021 - 2⁴¹ = 1022189974469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221213229974 and 3221213230001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221213230061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16691881 + ... + 16883758.

It is an arithmetic number, because the mean of its divisors is an integer number (405526579920).

Almost surely, 2^{3221213230021} is an apocalyptic number.

It is an amenable number.

3221213230021 is a deficient number, since it is larger than the sum of its proper divisors (22999409339).

3221213230021 is a wasteful number, since it uses less digits than its factorization.

3221213230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33576323.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 3221213230021 its reverse (1200323121223), we get a palindrome (4421536351244).

The spelling of 3221213230021 in words is "three trillion, two hundred twenty-one billion, two hundred thirteen million, two hundred thirty thousand, twenty-one".