20020102211 has 8 divisors (see below), whose sum is σ = 20130862800. Its totient is φ = 19909491840.

The previous prime is 20020102177. The next prime is 20020102231. The reversal of 20020102211 is 11220102002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020102211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020102192 and 20020102201.

It is not an unprimeable number, because it can be changed into a prime (20020102231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235175 + ... + 308783.

It is an arithmetic number, because the mean of its divisors is an integer number (2516357850).

Almost surely, 2^20020102211 is an apocalyptic number.

20020102211 is a deficient number, since it is larger than the sum of its proper divisors (110760589).

20020102211 is a wasteful number, since it uses less digits than its factorization.

20020102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75109.

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

Adding to 20020102211 its reverse (11220102002), we get a palindrome (31240204213).

The spelling of 20020102211 in words is "twenty billion, twenty million, one hundred two thousand, two hundred eleven".