20211144101 has 4 divisors (see below), whose sum is σ = 20681170752. Its totient is φ = 19741117452.

The previous prime is 20211144097. The next prime is 20211144119. The reversal of 20211144101 is 10144111202.

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 20211144101 - 2² = 20211144097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20211144101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211144181) 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, 235013261 + ... + 235013346.

It is an arithmetic number, because the mean of its divisors is an integer number (5170292688).

Almost surely, 2^20211144101 is an apocalyptic number.

It is an amenable number.

20211144101 is a deficient number, since it is larger than the sum of its proper divisors (470026651).

20211144101 is an equidigital number, since it uses as much as digits as its factorization.

20211144101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470026650.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20211144101 its reverse (10144111202), we get a palindrome (30355255303).

The spelling of 20211144101 in words is "twenty billion, two hundred eleven million, one hundred forty-four thousand, one hundred one".