20121112102222 has 8 divisors (see below), whose sum is σ = 30181721056200. Its totient is φ = 10060538416824.

The previous prime is 20121112102139. The next prime is 20121112102253. The reversal of 20121112102222 is 22220121112102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20121112102222.

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, 7341472 + ... + 9702547.

It is an arithmetic number, because the mean of its divisors is an integer number (3772715132025).

Almost surely, 2^{20121112102222} is an apocalyptic number.

20121112102222 is a deficient number, since it is larger than the sum of its proper divisors (10060608953978).

20121112102222 is a wasteful number, since it uses less digits than its factorization.

20121112102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17634290.

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

Adding to 20121112102222 its reverse (22220121112102), we get a palindrome (42341233214324).

It can be divided in two parts, 20121112102 and 222, that multiplied together give a palindrome (4466886886644).

The spelling of 20121112102222 in words is "twenty trillion, one hundred twenty-one billion, one hundred twelve million, one hundred two thousand, two hundred twenty-two".