113001220221 has 32 divisors (see below), whose sum is σ = 157520092800. Its totient is φ = 71983883520.

The previous prime is 113001220219. The next prime is 113001220231. The reversal of 113001220221 is 122022100311.

It is not a de Polignac number, because 113001220221 - 2¹ = 113001220219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113001220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113001220231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6992811 + ... + 7008951.

It is an arithmetic number, because the mean of its divisors is an integer number (4922502900).

Almost surely, 2^113001220221 is an apocalyptic number.

It is an amenable number.

113001220221 is a deficient number, since it is larger than the sum of its proper divisors (44518872579).

113001220221 is a wasteful number, since it uses less digits than its factorization.

113001220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17309.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 113001220221 its reverse (122022100311), we get a palindrome (235023320532).

The spelling of 113001220221 in words is "one hundred thirteen billion, one million, two hundred twenty thousand, two hundred twenty-one".