20112121220222 has 8 divisors (see below), whose sum is σ = 30168216466200. Its totient is φ = 10056049064824.

The previous prime is 20112121220183. The next prime is 20112121220353. The reversal of 20112121220222 is 22202212121102.

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 = 20112121220194 and 20112121220203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3400097 + ... + 7196172.

It is an arithmetic number, because the mean of its divisors is an integer number (3771027058275).

Almost surely, 2^{20112121220222} is an apocalyptic number.

20112121220222 is a deficient number, since it is larger than the sum of its proper divisors (10056095245978).

20112121220222 is a wasteful number, since it uses less digits than its factorization.

20112121220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11545290.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20112121220222 its reverse (22202212121102), we get a palindrome (42314333341324).

The spelling of 20112121220222 in words is "twenty trillion, one hundred twelve billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".