20202012211 has 12 divisors (see below), whose sum is σ = 21245100912. Its totient is φ = 19207869296.

The previous prime is 20202012139. The next prime is 20202012239. The reversal of 20202012211 is 11221020202.

It is a happy number.

It is not a de Polignac number, because 20202012211 - 2⁹ = 20202011699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202012191 and 20202012200.

It is not an unprimeable number, because it can be changed into a prime (20202012241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25996 + ... + 202681.

It is an arithmetic number, because the mean of its divisors is an integer number (1770425076).

Almost surely, 2^20202012211 is an apocalyptic number.

20202012211 is a deficient number, since it is larger than the sum of its proper divisors (1043088701).

20202012211 is a wasteful number, since it uses less digits than its factorization.

20202012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228890 (or 228867 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20202012211 its reverse (11221020202), we get a palindrome (31423032413).

The spelling of 20202012211 in words is "twenty billion, two hundred two million, twelve thousand, two hundred eleven".