20022122011 has 12 divisors (see below), whose sum is σ = 21670496352. Its totient is φ = 18488782208.

The previous prime is 20022121981. The next prime is 20022122017. The reversal of 20022122011 is 11022122002.

It is a happy number.

It is not a de Polignac number, because 20022122011 - 2¹⁹ = 20021597723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022121982 and 20022122000.

It is not an unprimeable number, because it can be changed into a prime (20022122017) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 638275 + ... + 668908.

It is an arithmetic number, because the mean of its divisors is an integer number (1805874696).

Almost surely, 2^20022122011 is an apocalyptic number.

20022122011 is a deficient number, since it is larger than the sum of its proper divisors (1648374341).

20022122011 is a wasteful number, since it uses less digits than its factorization.

20022122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307270 (or 1307253 counting only the distinct ones).

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

Adding to 20022122011 its reverse (11022122002), we get a palindrome (31044244013).

Subtracting from 20022122011 its reverse (11022122002), we obtain a palindrome (9000000009).

The spelling of 20022122011 in words is "twenty billion, twenty-two million, one hundred twenty-two thousand, eleven".