221032211010 has 32 divisors (see below), whose sum is σ = 571283254080. Its totient is φ = 54407928768.

The previous prime is 221032210981. The next prime is 221032211053. The reversal of 221032211010 is 10112230122.

221032211010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 283374240 + ... + 283375019.

It is an arithmetic number, because the mean of its divisors is an integer number (17852601690).

Almost surely, 2^221032211010 is an apocalyptic number.

221032211010 is an abundant number, since it is smaller than the sum of its proper divisors (350251043070).

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

221032211010 is a wasteful number, since it uses less digits than its factorization.

221032211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566749282.

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

Adding to 221032211010 its reverse (10112230122), we get a palindrome (231144441132).

The spelling of 221032211010 in words is "two hundred twenty-one billion, thirty-two million, two hundred eleven thousand, ten".