20213220022 has 4 divisors (see below), whose sum is σ = 30319830036. Its totient is φ = 10106610010.

The previous prime is 20213219987. The next prime is 20213220029. The reversal of 20213220022 is 22002231202.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20213219978 and 20213220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213220029) 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 as a sum of consecutive naturals, namely, 5053305004 + ... + 5053305007.

It is an arithmetic number, because the mean of its divisors is an integer number (7579957509).

Almost surely, 2^20213220022 is an apocalyptic number.

20213220022 is a deficient number, since it is larger than the sum of its proper divisors (10106610014).

20213220022 is a wasteful number, since it uses less digits than its factorization.

20213220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106610013.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20213220022 its reverse (22002231202), we get a palindrome (42215451224).

The spelling of 20213220022 in words is "twenty billion, two hundred thirteen million, two hundred twenty thousand, twenty-two".