20112221102122 has 8 divisors (see below), whose sum is σ = 30405877572096. Its totient is φ = 9976928578092.

The previous prime is 20112221102053. The next prime is 20112221102123. The reversal of 20112221102122 is 22120112221102.

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 20112221102122.

It is not an unprimeable number, because it can be changed into a prime (20112221102123) 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, 39590986168 + ... + 39590986675.

It is an arithmetic number, because the mean of its divisors is an integer number (3800734696512).

Almost surely, 2^{20112221102122} is an apocalyptic number.

20112221102122 is a deficient number, since it is larger than the sum of its proper divisors (10293656469974).

20112221102122 is a wasteful number, since it uses less digits than its factorization.

20112221102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79181972972.

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

Adding to 20112221102122 its reverse (22120112221102), we get a palindrome (42232333323224).

The spelling of 20112221102122 in words is "twenty trillion, one hundred twelve billion, two hundred twenty-one million, one hundred two thousand, one hundred twenty-two".