20201222013 has 32 divisors (see below), whose sum is σ = 32424345600. Its totient is φ = 11171165040.

The previous prime is 20201221993. The next prime is 20201222017. The reversal of 20201222013 is 31022210202.

It is a happy number.

It is not a de Polignac number, because 20201222013 - 2⁵ = 20201221981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20201221983 and 20201222001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201222017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284745 + ... + 348542.

It is an arithmetic number, because the mean of its divisors is an integer number (1013260800).

Almost surely, 2^20201222013 is an apocalyptic number.

It is an amenable number.

20201222013 is a deficient number, since it is larger than the sum of its proper divisors (12223123587).

20201222013 is an equidigital number, since it uses as much as digits as its factorization.

20201222013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633342 (or 633328 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20201222013 its reverse (31022210202), we get a palindrome (51223432215).

The spelling of 20201222013 in words is "twenty billion, two hundred one million, two hundred twenty-two thousand, thirteen".