221013103012 has 12 divisors (see below), whose sum is σ = 416524694236. Its totient is φ = 102006047520.

The previous prime is 221013102997. The next prime is 221013103013. The reversal of 221013103012 is 210301310122.

It can be written as a sum of positive squares in 2 ways, for example, as 28515050496 + 192498052516 = 168864^2 + 438746^2 .

It is not an unprimeable number, because it can be changed into a prime (221013103013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125125939 + ... + 2125126042.

Almost surely, 2^221013103012 is an apocalyptic number.

It is an amenable number.

221013103012 is a deficient number, since it is larger than the sum of its proper divisors (195511591224).

221013103012 is a wasteful number, since it uses less digits than its factorization.

221013103012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250251998 (or 4250251996 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221013103012 its reverse (210301310122), we get a palindrome (431314413134).

The spelling of 221013103012 in words is "two hundred twenty-one billion, thirteen million, one hundred three thousand, twelve".