202200111021 has 4 divisors (see below), whose sum is σ = 269600148032. Its totient is φ = 134800074012.

The previous prime is 202200110971. The next prime is 202200111023. The reversal of 202200111021 is 120111002202.

202200111021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 202200111021 - 2¹⁵ = 202200078253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202200110988 and 202200111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202200111023) 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 3 ways as a sum of consecutive naturals, for example, 33700018501 + ... + 33700018506.

It is an arithmetic number, because the mean of its divisors is an integer number (67400037008).

Almost surely, 2^202200111021 is an apocalyptic number.

It is an amenable number.

202200111021 is a deficient number, since it is larger than the sum of its proper divisors (67400037011).

202200111021 is an equidigital number, since it uses as much as digits as its factorization.

202200111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67400037010.

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

Adding to 202200111021 its reverse (120111002202), we get a palindrome (322311113223).

The spelling of 202200111021 in words is "two hundred two billion, two hundred million, one hundred eleven thousand, twenty-one".