12221112102122 has 64 divisors (see below), whose sum is σ = 23103728955648. Its totient is φ = 4709759040000.

The previous prime is 12221112102083. The next prime is 12221112102127. The reversal of 12221112102122 is 22120121112221.

It is a junction number, because it is equal to n+sod(n) for n = 12221112102094 and 12221112102103.

It is not an unprimeable number, because it can be changed into a prime (12221112102127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15686972 + ... + 16447592.

It is an arithmetic number, because the mean of its divisors is an integer number (360995764932).

Almost surely, 2^{12221112102122} is an apocalyptic number.

12221112102122 is a deficient number, since it is larger than the sum of its proper divisors (10882616853526).

12221112102122 is a wasteful number, since it uses less digits than its factorization.

12221112102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761775.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12221112102122 its reverse (22120121112221), we get a palindrome (34341233214343).

It can be divided in two parts, 1222111 and 2102122, that added together give a palindrome (3324233).

The spelling of 12221112102122 in words is "twelve trillion, two hundred twenty-one billion, one hundred twelve million, one hundred two thousand, one hundred twenty-two".