20212021101 has 8 divisors (see below), whose sum is σ = 27099917280. Its totient is φ = 13399402832.

The previous prime is 20212021099. The next prime is 20212021133. The reversal of 20212021101 is 10112021202.

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 20212021101 - 2¹ = 20212021099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212026101) 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, 18818850 + ... + 18819923.

It is an arithmetic number, because the mean of its divisors is an integer number (3387489660).

Almost surely, 2^20212021101 is an apocalyptic number.

It is an amenable number.

20212021101 is a deficient number, since it is larger than the sum of its proper divisors (6887896179).

20212021101 is a wasteful number, since it uses less digits than its factorization.

20212021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37638955.

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

Adding to 20212021101 its reverse (10112021202), we get a palindrome (30324042303).

The spelling of 20212021101 in words is "twenty billion, two hundred twelve million, twenty-one thousand, one hundred one".