3311212310221 has 16 divisors (see below), whose sum is σ = 3400941772800. Its totient is φ = 3222078694128.

The previous prime is 3311212310209. The next prime is 3311212310243. The reversal of 3311212310221 is 1220132121133.

3311212310221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3311212310221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3311212310192 and 3311212310201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311212310321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15935820 + ... + 16142266.

It is an arithmetic number, because the mean of its divisors is an integer number (212558860800).

Almost surely, 2^{3311212310221} is an apocalyptic number.

It is an amenable number.

3311212310221 is a deficient number, since it is larger than the sum of its proper divisors (89729462579).

3311212310221 is a wasteful number, since it uses less digits than its factorization.

3311212310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207888.

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

Adding to 3311212310221 its reverse (1220132121133), we get a palindrome (4531344431354).

The spelling of 3311212310221 in words is "three trillion, three hundred eleven billion, two hundred twelve million, three hundred ten thousand, two hundred twenty-one".