221020201032 has 32 divisors (see below), whose sum is σ = 585053474400. Its totient is φ = 69339670784.

The previous prime is 221020201007. The next prime is 221020201033. The reversal of 221020201032 is 230102020122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221020201033) 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, 270857682 + ... + 270858497.

It is an arithmetic number, because the mean of its divisors is an integer number (18282921075).

Almost surely, 2^221020201032 is an apocalyptic number.

It is an amenable number.

221020201032 is an abundant number, since it is smaller than the sum of its proper divisors (364033273368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221020201032 is a wasteful number, since it uses less digits than its factorization.

221020201032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541716205 (or 541716201 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 221020201032 its reverse (230102020122), we get a palindrome (451122221154).

The spelling of 221020201032 in words is "two hundred twenty-one billion, twenty million, two hundred one thousand, thirty-two".