202111132021 has 8 divisors (see below), whose sum is σ = 204322632800. Its totient is φ = 199906127280.

The previous prime is 202111131979. The next prime is 202111132031. The reversal of 202111132021 is 120231111202.

202111132021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202111132021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202111131986 and 202111132004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111132031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1561431 + ... + 1685908.

It is an arithmetic number, because the mean of its divisors is an integer number (25540329100).

Almost surely, 2^202111132021 is an apocalyptic number.

It is an amenable number.

202111132021 is a deficient number, since it is larger than the sum of its proper divisors (2211500779).

202111132021 is a wasteful number, since it uses less digits than its factorization.

202111132021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248019.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 202111132021 its reverse (120231111202), we get a palindrome (322342243223).

The spelling of 202111132021 in words is "two hundred two billion, one hundred eleven million, one hundred thirty-two thousand, twenty-one".