20201111212 has 24 divisors (see below), whose sum is σ = 36181283600. Its totient is φ = 9863695296.

The previous prime is 20201111207. The next prime is 20201111323. The reversal of 20201111212 is 21211110202.

It is a junction number, because it is equal to n+sod(n) for n = 20201111192 and 20201111201.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1249114 + ... + 1265182.

Almost surely, 2^20201111212 is an apocalyptic number.

It is an amenable number.

20201111212 is a deficient number, since it is larger than the sum of its proper divisors (15980172388).

20201111212 is a wasteful number, since it uses less digits than its factorization.

20201111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23425 (or 23423 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20201111212 its reverse (21211110202), we get a palindrome (41412221414).

The spelling of 20201111212 in words is "twenty billion, two hundred one million, one hundred eleven thousand, two hundred twelve".