20101000221002 has 32 divisors (see below), whose sum is σ = 32607092339712. Its totient is φ = 9257261288704.

The previous prime is 20101000220971. The next prime is 20101000221011. The reversal of 20101000221002 is 20012200010102.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 18886568 + ... + 19922460.

It is an arithmetic number, because the mean of its divisors is an integer number (1018971635616).

Almost surely, 2^{20101000221002} is an apocalyptic number.

20101000221002 is a deficient number, since it is larger than the sum of its proper divisors (12506092118710).

20101000221002 is a wasteful number, since it uses less digits than its factorization.

20101000221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048102.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20101000221002 its reverse (20012200010102), we get a palindrome (40113200231104).

The spelling of 20101000221002 in words is "twenty trillion, one hundred one billion, two hundred twenty-one thousand, two".