3311210321221 has 64 divisors (see below), whose sum is σ = 3818393395200. Its totient is φ = 2843714764800.

The previous prime is 3311210321183. The next prime is 3311210321297. The reversal of 3311210321221 is 1221230121133.

It is a cyclic number.

It is not a de Polignac number, because 3311210321221 - 2⁹ = 3311210320709 is a prime.

It is a super-2 number, since 2×3311210321221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3311210321192 and 3311210321201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311220321221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1366573416 + ... + 1366575838.

It is an arithmetic number, because the mean of its divisors is an integer number (59662396800).

Almost surely, 2^{3311210321221} is an apocalyptic number.

It is an amenable number.

3311210321221 is a deficient number, since it is larger than the sum of its proper divisors (507183073979).

3311210321221 is a wasteful number, since it uses less digits than its factorization.

3311210321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3010.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 3311210321221 its reverse (1221230121133), we get a palindrome (4532440442354).

The spelling of 3311210321221 in words is "three trillion, three hundred eleven billion, two hundred ten million, three hundred twenty-one thousand, two hundred twenty-one".