20202211112101 has 4 divisors (see below), whose sum is σ = 20231030244204. Its totient is φ = 20173391980000.

The previous prime is 20202211112087. The next prime is 20202211112119. The reversal of 20202211112101 is 10121111220202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12628712616100 + 7573498496001 = 3553690^2 + 2751999^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202211112101 - 2¹⁵ = 20202211079333 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 (20202211112701) 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, 14409565000 + ... + 14409566401.

It is an arithmetic number, because the mean of its divisors is an integer number (5057757561051).

Almost surely, 2^{20202211112101} is an apocalyptic number.

It is an amenable number.

20202211112101 is a deficient number, since it is larger than the sum of its proper divisors (28819132103).

20202211112101 is an equidigital number, since it uses as much as digits as its factorization.

20202211112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28819132102.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20202211112101 its reverse (10121111220202), we get a palindrome (30323322332303).

The spelling of 20202211112101 in words is "twenty trillion, two hundred two billion, two hundred eleven million, one hundred twelve thousand, one hundred one".