101100201021021 has 16 divisors (see below), whose sum is σ = 138673873878848. Its totient is φ = 65469393072000.

The previous prime is 101100201021007. The next prime is 101100201021067. The reversal of 101100201021021 is 120120102001101.

It is not a de Polignac number, because 101100201021021 - 2⁹ = 101100201020509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101100201020988 and 101100201021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101100201001021) 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, 757680895 + ... + 757814316.

It is an arithmetic number, because the mean of its divisors is an integer number (8667117117428).

Almost surely, 2^{101100201021021} is an apocalyptic number.

It is an amenable number.

101100201021021 is a deficient number, since it is larger than the sum of its proper divisors (37573672857827).

101100201021021 is a wasteful number, since it uses less digits than its factorization.

101100201021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515495852.

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

Adding to 101100201021021 its reverse (120120102001101), we get a palindrome (221220303022122).

The spelling of 101100201021021 in words is "one hundred one trillion, one hundred billion, two hundred one million, twenty-one thousand, twenty-one".