20210211101 has 4 divisors (see below), whose sum is σ = 20305994304. Its totient is φ = 20114427900.

The previous prime is 20210211059. The next prime is 20210211121. The reversal of 20210211101 is 10111201202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20210211101 - 2²⁶ = 20143102237 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 (20210211121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47891285 + ... + 47891706.

It is an arithmetic number, because the mean of its divisors is an integer number (5076498576).

Almost surely, 2^20210211101 is an apocalyptic number.

It is an amenable number.

20210211101 is a deficient number, since it is larger than the sum of its proper divisors (95783203).

20210211101 is an equidigital number, since it uses as much as digits as its factorization.

20210211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95783202.

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

Adding to 20210211101 its reverse (10111201202), we get a palindrome (30321412303).

The spelling of 20210211101 in words is "twenty billion, two hundred ten million, two hundred eleven thousand, one hundred one".