3101020221 has 8 divisors (see below), whose sum is σ = 4452747040. Its totient is φ = 1908320112.

The previous prime is 3101020193. The next prime is 3101020249. The reversal of 3101020221 is 1220201013.

It is an interprime number because it is at equal distance from previous prime (3101020193) and next prime (3101020249).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3101020221 - 2⁵ = 3101020189 is a prime.

It is a super-2 number, since 2×3101020221² = 19232652822101777682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3101020197 and 3101020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3101020421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39756631 + ... + 39756708.

It is an arithmetic number, because the mean of its divisors is an integer number (556593380).

Almost surely, 2^3101020221 is an apocalyptic number.

It is an amenable number.

3101020221 is a deficient number, since it is larger than the sum of its proper divisors (1351726819).

3101020221 is a wasteful number, since it uses less digits than its factorization.

3101020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79513355.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3101020221 is about 55686.8047296664. The cubic root of 3101020221 is about 1458.2596735483.

Adding to 3101020221 its reverse (1220201013), we get a palindrome (4321221234).

The spelling of 3101020221 in words is "three billion, one hundred one million, twenty thousand, two hundred twenty-one".