221012321032 has 48 divisors (see below), whose sum is σ = 423149323500. Its totient is φ = 108215587200.

The previous prime is 221012321011. The next prime is 221012321069. The reversal of 221012321032 is 230123210122.

It can be written as a sum of positive squares in 2 ways, for example, as 156621228516 + 64391092516 = 395754^2 + 253754^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5990482 + ... + 6027262.

Almost surely, 2^221012321032 is an apocalyptic number.

It is an amenable number.

221012321032 is a deficient number, since it is larger than the sum of its proper divisors (202137002468).

221012321032 is a wasteful number, since it uses less digits than its factorization.

221012321032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37078 (or 37003 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 221012321032 its reverse (230123210122), we get a palindrome (451135531154).

The spelling of 221012321032 in words is "two hundred twenty-one billion, twelve million, three hundred twenty-one thousand, thirty-two".