100101020012021 has 24 divisors (see below), whose sum is σ = 117849602553984. Its totient is φ = 84765245288640.

The previous prime is 100101020012009. The next prime is 100101020012027. The reversal of 100101020012021 is 120210020101001.

It is a de Polignac number, because none of the positive numbers 2^k-100101020012021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100101020011993 and 100101020012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100101020012027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200990516 + ... + 201487938.

It is an arithmetic number, because the mean of its divisors is an integer number (4910400106416).

Almost surely, 2^{100101020012021} is an apocalyptic number.

It is an amenable number.

100101020012021 is a deficient number, since it is larger than the sum of its proper divisors (17748582541963).

100101020012021 is an equidigital number, since it uses as much as digits as its factorization.

100101020012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547001 (or 546994 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100101020012021 its reverse (120210020101001), we get a palindrome (220311040113022).

The spelling of 100101020012021 in words is "one hundred trillion, one hundred one billion, twenty million, twelve thousand, twenty-one".