100221212021001 has 16 divisors (see below), whose sum is σ = 137275385245824. Its totient is φ = 64991525001984.

The previous prime is 100221212020981. The next prime is 100221212021027. The reversal of 100221212021001 is 100120212122001.

It is not a de Polignac number, because 100221212021001 - 2⁷ = 100221212020873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100221212021041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116435536 + ... + 117293121.

It is an arithmetic number, because the mean of its divisors is an integer number (8579711577864).

Almost surely, 2^{100221212021001} is an apocalyptic number.

It is an amenable number.

100221212021001 is a deficient number, since it is larger than the sum of its proper divisors (37054173224823).

100221212021001 is a wasteful number, since it uses less digits than its factorization.

100221212021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233732560.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100221212021001 its reverse (100120212122001), we get a palindrome (200341424143002).

The spelling of 100221212021001 in words is "one hundred trillion, two hundred twenty-one billion, two hundred twelve million, twenty-one thousand, one".