10221220010002 has 8 divisors (see below), whose sum is σ = 15345857310156. Its totient is φ = 5105934239952.

The previous prime is 10221220009993. The next prime is 10221220010009. The reversal of 10221220010002 is 20001002212201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9734768163481 + 486451846521 = 3120059^2 + 697461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (10221220010009) 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, 2337879793 + ... + 2337884164.

Almost surely, 2^{10221220010002} is an apocalyptic number.

10221220010002 is a deficient number, since it is larger than the sum of its proper divisors (5124637300154).

10221220010002 is a wasteful number, since it uses less digits than its factorization.

10221220010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675765052.

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

Adding to 10221220010002 its reverse (20001002212201), we get a palindrome (30222222222203).

The spelling of 10221220010002 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty million, ten thousand, two".