10100101221021 has 16 divisors (see below), whose sum is σ = 15921341827200. Its totient is φ = 5572469638848.

The previous prime is 10100101221019. The next prime is 10100101221043. The reversal of 10100101221021 is 12012210100101.

It is not a de Polignac number, because 10100101221021 - 2¹ = 10100101221019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10100101220988 and 10100101221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100101221071) 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, 8292364926 + ... + 8292366143.

It is an arithmetic number, because the mean of its divisors is an integer number (995083864200).

Almost surely, 2^{10100101221021} is an apocalyptic number.

It is an amenable number.

10100101221021 is a deficient number, since it is larger than the sum of its proper divisors (5821240606179).

10100101221021 is a wasteful number, since it uses less digits than its factorization.

10100101221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16584731108.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10100101221021 its reverse (12012210100101), we get a palindrome (22112311321122).

The spelling of 10100101221021 in words is "ten trillion, one hundred billion, one hundred one million, two hundred twenty-one thousand, twenty-one".