202111221121193 has 2 divisors, whose sum is σ = 202111221121194. Its totient is φ = 202111221121192.

The previous prime is 202111221121189. The next prime is 202111221121213. The reversal of 202111221121193 is 391121122111202.

202111221121193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168532012432144 + 33579208689049 = 12981988^2 + 5794757^2 .

It is a cyclic number.

It is not a de Polignac number, because 202111221121193 - 2² = 202111221121189 is a prime.

It is not a weakly prime, because it can be changed into another prime (202111221121093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101055610560596 + 101055610560597.

It is an arithmetic number, because the mean of its divisors is an integer number (101055610560597).

Almost surely, 2^{202111221121193} is an apocalyptic number.

It is an amenable number.

202111221121193 is a deficient number, since it is larger than the sum of its proper divisors (1).

202111221121193 is an equidigital number, since it uses as much as digits as its factorization.

202111221121193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 29.

Adding to 202111221121193 its reverse (391121122111202), we get a palindrome (593232343232395).

The spelling of 202111221121193 in words is "two hundred two trillion, one hundred eleven billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred ninety-three".