20212211101 has 8 divisors (see below), whose sum is σ = 21094873344. Its totient is φ = 19329871440.

The previous prime is 20212211099. The next prime is 20212211111. The reversal of 20212211101 is 10111221202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20212211101 - 2¹ = 20212211099 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 (20212211111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52071 + ... + 207691.

It is an arithmetic number, because the mean of its divisors is an integer number (2636859168).

Almost surely, 2^20212211101 is an apocalyptic number.

It is an amenable number.

20212211101 is a deficient number, since it is larger than the sum of its proper divisors (882662243).

20212211101 is a wasteful number, since it uses less digits than its factorization.

20212211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161291.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20212211101 its reverse (10111221202), we get a palindrome (30323432303).

It can be divided in two parts, 2021 and 2211101, that added together give a palindrome (2213122).

The spelling of 20212211101 in words is "twenty billion, two hundred twelve million, two hundred eleven thousand, one hundred one".