4221533061 has 12 divisors (see below), whose sum is σ = 6246496620. Its totient is φ = 2745712320.

The previous prime is 4221533053. The next prime is 4221533077. The reversal of 4221533061 is 1603351224.

4221533061 is a `hidden beast` number, since 422 + 153 + 30 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1406700036 + 2814833025 = 37506^2 + 53055^2 .

It is not a de Polignac number, because 4221533061 - 2³ = 4221533053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221533021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5719866 + ... + 5720603.

It is an arithmetic number, because the mean of its divisors is an integer number (520541385).

Almost surely, 2^4221533061 is an apocalyptic number.

4221533061 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4221533061 is a deficient number, since it is larger than the sum of its proper divisors (2024963559).

4221533061 is a wasteful number, since it uses less digits than its factorization.

4221533061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11440516 (or 11440513 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 4221533061 is about 64973.3257652708. The cubic root of 4221533061 is about 1616.1812533856.

Adding to 4221533061 its reverse (1603351224), we get a palindrome (5824884285).

The spelling of 4221533061 in words is "four billion, two hundred twenty-one million, five hundred thirty-three thousand, sixty-one".