20110112021222 has 4 divisors (see below), whose sum is σ = 30165168031836. Its totient is φ = 10055056010610.

The previous prime is 20110112021213. The next prime is 20110112021243. The reversal of 20110112021222 is 22212021101102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20110112021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027528005304 + ... + 5027528005307.

It is an arithmetic number, because the mean of its divisors is an integer number (7541292007959).

Almost surely, 2^{20110112021222} is an apocalyptic number.

20110112021222 is a deficient number, since it is larger than the sum of its proper divisors (10055056010614).

20110112021222 is a wasteful number, since it uses less digits than its factorization.

20110112021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055056010613.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20110112021222 its reverse (22212021101102), we get a palindrome (42322133122324).

The spelling of 20110112021222 in words is "twenty trillion, one hundred ten billion, one hundred twelve million, twenty-one thousand, two hundred twenty-two".