101201120221 has 4 divisors (see below), whose sum is σ = 101213975772. Its totient is φ = 101188264672.

The previous prime is 101201120213. The next prime is 101201120243. The reversal of 101201120221 is 122021102101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12030799225 + 89170320996 = 109685^2 + 298614^2 .

It is a cyclic number.

It is not a de Polignac number, because 101201120221 - 2³ = 101201120213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201120291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6415960 + ... + 6431713.

It is an arithmetic number, because the mean of its divisors is an integer number (25303493943).

Almost surely, 2^101201120221 is an apocalyptic number.

It is an amenable number.

101201120221 is a deficient number, since it is larger than the sum of its proper divisors (12855551).

101201120221 is an equidigital number, since it uses as much as digits as its factorization.

101201120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12855550.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101201120221 its reverse (122021102101), we get a palindrome (223222222322).

The spelling of 101201120221 in words is "one hundred one billion, two hundred one million, one hundred twenty thousand, two hundred twenty-one".