20202401211 has 4 divisors (see below), whose sum is σ = 26936534952. Its totient is φ = 13468267472.

The previous prime is 20202401209. The next prime is 20202401221. The reversal of 20202401211 is 11210420202.

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

It is a cyclic number.

It is not a de Polignac number, because 20202401211 - 2¹ = 20202401209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20202401201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3367066866 + ... + 3367066871.

It is an arithmetic number, because the mean of its divisors is an integer number (6734133738).

Almost surely, 2^20202401211 is an apocalyptic number.

20202401211 is a deficient number, since it is larger than the sum of its proper divisors (6734133741).

20202401211 is an equidigital number, since it uses as much as digits as its factorization.

20202401211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734133740.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20202401211 its reverse (11210420202), we get a palindrome (31412821413).

The spelling of 20202401211 in words is "twenty billion, two hundred two million, four hundred one thousand, two hundred eleven".