20020010211 has 24 divisors (see below), whose sum is σ = 29887064064. Its totient is φ = 12900368880.

The previous prime is 20020010207. The next prime is 20020010243. The reversal of 20020010211 is 11201002002.

It is not a de Polignac number, because 20020010211 - 2² = 20020010207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20020010193 and 20020010202.

It is not an unprimeable number, because it can be changed into a prime (20020010261) 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, 187350 + ... + 274116.

It is an arithmetic number, because the mean of its divisors is an integer number (1245294336).

Almost surely, 2^20020010211 is an apocalyptic number.

20020010211 is a deficient number, since it is larger than the sum of its proper divisors (9867053853).

20020010211 is a wasteful number, since it uses less digits than its factorization.

20020010211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87631 (or 87628 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20020010211 its reverse (11201002002), we get a palindrome (31221012213).

The spelling of 20020010211 in words is "twenty billion, twenty million, ten thousand, two hundred eleven".