10021200221002 has 16 divisors (see below), whose sum is σ = 15041591189352. Its totient is φ = 5007336742080.

The previous prime is 10021200220981. The next prime is 10021200221089. The reversal of 10021200221002 is 20012200212001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8292551143041 + 1728649077961 = 2879679^2 + 1314781^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111732808 + ... + 111822460.

Almost surely, 2^{10021200221002} is an apocalyptic number.

10021200221002 is a deficient number, since it is larger than the sum of its proper divisors (5020390968350).

10021200221002 is a wasteful number, since it uses less digits than its factorization.

10021200221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125433.

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

Adding to 10021200221002 its reverse (20012200212001), we get a palindrome (30033400433003).

Subtracting 10021200221002 from its reverse (20012200212001), we obtain a palindrome (9990999990999).

The spelling of 10021200221002 in words is "ten trillion, twenty-one billion, two hundred million, two hundred twenty-one thousand, two".