10221221112002 has 8 divisors (see below), whose sum is σ = 16233704119116. Its totient is φ = 4809986405632.

The previous prime is 10221221111993. The next prime is 10221221112041. The reversal of 10221221112002 is 20021112212201.

It can be written as a sum of positive squares in 2 ways, for example, as 10111070803681 + 110150308321 = 3179791^2 + 331889^2 .

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

It is a super-2 number, since 2×10221221112002² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150312075143 + ... + 150312075210.

Almost surely, 2^{10221221112002} is an apocalyptic number.

10221221112002 is a deficient number, since it is larger than the sum of its proper divisors (6012483007114).

10221221112002 is a wasteful number, since it uses less digits than its factorization.

10221221112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300624150372.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10221221112002 its reverse (20021112212201), we get a palindrome (30242333324203).

The spelling of 10221221112002 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, two".