100221021011211 has 16 divisors (see below), whose sum is σ = 134589963271680. Its totient is φ = 66333050540640.

The previous prime is 100221021011201. The next prime is 100221021011231. The reversal of 100221021011211 is 112110120122001.

It is a happy number.

It is not a de Polignac number, because 100221021011211 - 2⁶ = 100221021011147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100221021011201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144090606 + ... + 144784476.

It is an arithmetic number, because the mean of its divisors is an integer number (8411872704480).

Almost surely, 2^{100221021011211} is an apocalyptic number.

100221021011211 is a deficient number, since it is larger than the sum of its proper divisors (34368942260469).

100221021011211 is a wasteful number, since it uses less digits than its factorization.

100221021011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040386.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100221021011211 its reverse (112110120122001), we get a palindrome (212331141133212).

The spelling of 100221021011211 in words is "one hundred trillion, two hundred twenty-one billion, twenty-one million, eleven thousand, two hundred eleven".