3311220001221 has 32 divisors (see below), whose sum is σ = 5368898304000. Its totient is φ = 2000263137840.

The previous prime is 3311220001183. The next prime is 3311220001223. The reversal of 3311220001221 is 1221000221133.

3311220001221 is a `hidden beast` number, since 331 + 12 + 200 + 0 + 122 + 1 = 666.

It is not a de Polignac number, because 3311220001221 - 2¹⁸ = 3311219739077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3311220001194 and 3311220001203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311220001223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18066621 + ... + 18248978.

It is an arithmetic number, because the mean of its divisors is an integer number (167778072000).

Almost surely, 2^{3311220001221} is an apocalyptic number.

It is an amenable number.

3311220001221 is a deficient number, since it is larger than the sum of its proper divisors (2057678302779).

3311220001221 is a wasteful number, since it uses less digits than its factorization.

3311220001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36315926 (or 36315920 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 3311220001221 its reverse (1221000221133), we get a palindrome (4532220222354).

The spelling of 3311220001221 in words is "three trillion, three hundred eleven billion, two hundred twenty million, one thousand, two hundred twenty-one".