100001020021211 has 4 divisors (see below), whose sum is σ = 100005138534024. Its totient is φ = 99996901508400.

The previous prime is 100001020021193. The next prime is 100001020021219. The reversal of 100001020021211 is 112120020100001.

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

It is a cyclic number.

It is not a de Polignac number, because 100001020021211 - 2²⁶ = 100000952912347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100001020021192 and 100001020021201.

It is not an unprimeable number, because it can be changed into a prime (100001020021219) 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, 2059219985 + ... + 2059268546.

It is an arithmetic number, because the mean of its divisors is an integer number (25001284633506).

Almost surely, 2^{100001020021211} is an apocalyptic number.

100001020021211 is a deficient number, since it is larger than the sum of its proper divisors (4118512813).

100001020021211 is an equidigital number, since it uses as much as digits as its factorization.

100001020021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4118512812.

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

Adding to 100001020021211 its reverse (112120020100001), we get a palindrome (212121040121212).

The spelling of 100001020021211 in words is "one hundred trillion, one billion, twenty million, twenty-one thousand, two hundred eleven".