3311221202021 has 8 divisors (see below), whose sum is σ = 3425421669600. Its totient is φ = 3197022096240.

The previous prime is 3311221202017. The next prime is 3311221202059. The reversal of 3311221202021 is 1202021221133.

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 3311221202021 - 2² = 3311221202017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3311221201984 and 3311221202002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311221208021) 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, 8480390 + ... + 8862248.

It is an arithmetic number, because the mean of its divisors is an integer number (428177708700).

Almost surely, 2^{3311221202021} is an apocalyptic number.

It is an amenable number.

3311221202021 is a deficient number, since it is larger than the sum of its proper divisors (114200467579).

3311221202021 is a wasteful number, since it uses less digits than its factorization.

3311221202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680899.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 3311221202021 its reverse (1202021221133), we get a palindrome (4513242423154).

The spelling of 3311221202021 in words is "three trillion, three hundred eleven billion, two hundred twenty-one million, two hundred two thousand, twenty-one".