20020212011 has 24 divisors (see below), whose sum is σ = 21343467600. Its totient is φ = 18775296576.

The previous prime is 20020212001. The next prime is 20020212053. The reversal of 20020212011 is 11021202002.

It is a happy number.

It is not a de Polignac number, because 20020212011 - 2⁶ = 20020211947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20020211983 and 20020212001.

It is not an unprimeable number, because it can be changed into a prime (20020212001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25119065 + ... + 25119861.

It is an arithmetic number, because the mean of its divisors is an integer number (889311150).

Almost surely, 2^20020212011 is an apocalyptic number.

20020212011 is a deficient number, since it is larger than the sum of its proper divisors (1323255589).

20020212011 is a wasteful number, since it uses less digits than its factorization.

20020212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451 (or 1432 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20020212011 its reverse (11021202002), we get a palindrome (31041414013).

The spelling of 20020212011 in words is "twenty billion, twenty million, two hundred twelve thousand, eleven".