20202012021211 has 4 divisors (see below), whose sum is σ = 20202490138392. Its totient is φ = 20201533904032.

The previous prime is 20202012021179. The next prime is 20202012021241. The reversal of 20202012021211 is 11212021020202.

It is a happy number.

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 20202012021211 - 2⁵ = 20202012021179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202012021241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238995205 + ... + 239079718.

It is an arithmetic number, because the mean of its divisors is an integer number (5050622534598).

Almost surely, 2^{20202012021211} is an apocalyptic number.

20202012021211 is a deficient number, since it is larger than the sum of its proper divisors (478117181).

20202012021211 is an equidigital number, since it uses as much as digits as its factorization.

20202012021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478117180.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20202012021211 its reverse (11212021020202), we get a palindrome (31414033041413).

The spelling of 20202012021211 in words is "twenty trillion, two hundred two billion, twelve million, twenty-one thousand, two hundred eleven".