220221100012 has 12 divisors (see below), whose sum is σ = 397818761536. Its totient is φ = 106558596720.

The previous prime is 220221099997. The next prime is 220221100013. The reversal of 220221100012 is 210001122022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220221099965 and 220221100001.

It is not an unprimeable number, because it can be changed into a prime (220221100013) 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, 887988183 + ... + 887988430.

Almost surely, 2^220221100012 is an apocalyptic number.

It is an amenable number.

220221100012 is a deficient number, since it is larger than the sum of its proper divisors (177597661524).

220221100012 is a wasteful number, since it uses less digits than its factorization.

220221100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775976648 (or 1775976646 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220221100012 its reverse (210001122022), we get a palindrome (430222222034).

The spelling of 220221100012 in words is "two hundred twenty billion, two hundred twenty-one million, one hundred thousand, twelve".