20112222022 has 8 divisors (see below), whose sum is σ = 30171959496. Its totient is φ = 10054902192.

The previous prime is 20112221993. The next prime is 20112222029. The reversal of 20112222022 is 22022221102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20112221987 and 20112222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112222029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583468 + ... + 616975.

It is an arithmetic number, because the mean of its divisors is an integer number (3771494937).

Almost surely, 2^20112222022 is an apocalyptic number.

20112222022 is a deficient number, since it is larger than the sum of its proper divisors (10059737474).

20112222022 is a wasteful number, since it uses less digits than its factorization.

20112222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208822.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20112222022 its reverse (22022221102), we get a palindrome (42134443124).

The spelling of 20112222022 in words is "twenty billion, one hundred twelve million, two hundred twenty-two thousand, twenty-two".