100101020021213 has 4 divisors (see below), whose sum is σ = 100986869756028. Its totient is φ = 99215170286400.

The previous prime is 100101020021209. The next prime is 100101020021257. The reversal of 100101020021213 is 312120020101001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7936373562649 + 92164646458564 = 2817157^2 + 9600242^2 .

It is a cyclic number.

It is not a de Polignac number, because 100101020021213 - 2² = 100101020021209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100101020021203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442924867238 + ... + 442924867463.

It is an arithmetic number, because the mean of its divisors is an integer number (25246717439007).

Almost surely, 2^{100101020021213} is an apocalyptic number.

It is an amenable number.

100101020021213 is a deficient number, since it is larger than the sum of its proper divisors (885849734815).

100101020021213 is an equidigital number, since it uses as much as digits as its factorization.

100101020021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885849734814.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 100101020021213 its reverse (312120020101001), we get a palindrome (412221040122214).

The spelling of 100101020021213 in words is "one hundred trillion, one hundred one billion, twenty million, twenty-one thousand, two hundred thirteen".