20122221120112 has 40 divisors (see below), whose sum is σ = 39701336094720. Its totient is φ = 9877900858560.

The previous prime is 20122221120097. The next prime is 20122221120247. The reversal of 20122221120112 is 21102112222102.

It is a self number, because there is not a number n which added to its sum of digits gives 20122221120112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36785448 + ... + 37328455.

It is an arithmetic number, because the mean of its divisors is an integer number (992533402368).

Almost surely, 2^{20122221120112} is an apocalyptic number.

It is an amenable number.

20122221120112 is a deficient number, since it is larger than the sum of its proper divisors (19579114974608).

20122221120112 is a wasteful number, since it uses less digits than its factorization.

20122221120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74114221 (or 74114215 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20122221120112 its reverse (21102112222102), we get a palindrome (41224333342214).

The spelling of 20122221120112 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twelve".