101221021001002 has 16 divisors (see below), whose sum is σ = 173521883620800. Its totient is φ = 43380404238528.

The previous prime is 101221021000991. The next prime is 101221021001003. The reversal of 101221021001002 is 200100120122101.

It is not an unprimeable number, because it can be changed into a prime (101221021001003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27391749 + ... + 30866647.

It is an arithmetic number, because the mean of its divisors is an integer number (10845117726300).

Almost surely, 2^{101221021001002} is an apocalyptic number.

101221021001002 is a deficient number, since it is larger than the sum of its proper divisors (72300862619798).

101221021001002 is a wasteful number, since it uses less digits than its factorization.

101221021001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555565.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101221021001002 its reverse (200100120122101), we get a palindrome (301321141123103).

The spelling of 101221021001002 in words is "one hundred one trillion, two hundred twenty-one billion, twenty-one million, one thousand, two".