3011202120221 has 4 divisors (see below), whose sum is σ = 3011218590432. Its totient is φ = 3011185650012.

The previous prime is 3011202120187. The next prime is 3011202120271. The reversal of 3011202120221 is 1220212021103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3011202120221 - 2²² = 3011197925917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3011202120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3011202120271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7957751 + ... + 8327556.

It is an arithmetic number, because the mean of its divisors is an integer number (752804647608).

Almost surely, 2^{3011202120221} is an apocalyptic number.

It is an amenable number.

3011202120221 is a deficient number, since it is larger than the sum of its proper divisors (16470211).

3011202120221 is a wasteful number, since it uses less digits than its factorization.

3011202120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16470210.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 3011202120221 its reverse (1220212021103), we get a palindrome (4231414141324).

The spelling of 3011202120221 in words is "three trillion, eleven billion, two hundred two million, one hundred twenty thousand, two hundred twenty-one".