3311212021 has 8 divisors (see below), whose sum is σ = 3680950784. Its totient is φ = 2957906160.

The previous prime is 3311212001. The next prime is 3311212081. The reversal of 3311212021 is 1202121133.

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 3311212021 - 2¹⁹ = 3310687733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3311211986 and 3311212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311212001) 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, 4107801 + ... + 4108606.

It is an arithmetic number, because the mean of its divisors is an integer number (460118848).

Almost surely, 2^3311212021 is an apocalyptic number.

3311212021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3311212021 is a deficient number, since it is larger than the sum of its proper divisors (369738763).

3311212021 is a wasteful number, since it uses less digits than its factorization.

3311212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8216451.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3311212021 is about 57543.1318316965. The cubic root of 3311212021 is about 1490.4897600238.

Adding to 3311212021 its reverse (1202121133), we get a palindrome (4513333154).

The spelling of 3311212021 in words is "three billion, three hundred eleven million, two hundred twelve thousand, twenty-one".