2021100012201 has 16 divisors (see below), whose sum is σ = 2825912165760. Its totient is φ = 1283116867200.

The previous prime is 2021100012199. The next prime is 2021100012233. The reversal of 2021100012201 is 1022100011202.

It is not a de Polignac number, because 2021100012201 - 2¹ = 2021100012199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021100012251) 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, 159110325 + ... + 159123026.

It is an arithmetic number, because the mean of its divisors is an integer number (176619510360).

Almost surely, 2^{2021100012201} is an apocalyptic number.

It is an amenable number.

2021100012201 is a deficient number, since it is larger than the sum of its proper divisors (804812153559).

2021100012201 is a wasteful number, since it uses less digits than its factorization.

2021100012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318233456.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2021100012201 its reverse (1022100011202), we get a palindrome (3043200023403).

Subtracting from 2021100012201 its reverse (1022100011202), we obtain a palindrome (999000000999).

The spelling of 2021100012201 in words is "two trillion, twenty-one billion, one hundred million, twelve thousand, two hundred one".