202011111012101 has 4 divisors (see below), whose sum is σ = 212643274749600. Its totient is φ = 191378947274604.

The previous prime is 202011111011977. The next prime is 202011111012143. The reversal of 202011111012101 is 101210111110202.

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 202011111012101 - 2⁴² = 197613064500997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011111012181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5316081868721 + ... + 5316081868758.

It is an arithmetic number, because the mean of its divisors is an integer number (53160818687400).

Almost surely, 2^{202011111012101} is an apocalyptic number.

It is an amenable number.

202011111012101 is a deficient number, since it is larger than the sum of its proper divisors (10632163737499).

202011111012101 is a wasteful number, since it uses less digits than its factorization.

202011111012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10632163737498.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 202011111012101 its reverse (101210111110202), we get a palindrome (303221222122303).

The spelling of 202011111012101 in words is "two hundred two trillion, eleven billion, one hundred eleven million, twelve thousand, one hundred one".