12102121022222 has 48 divisors (see below), whose sum is σ = 23145869543040. Its totient is φ = 4692765495600.

The previous prime is 12102121022207. The next prime is 12102121022267. The reversal of 12102121022222 is 22222012120121.

It is a super-2 number, since 2×12102121022222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12102121022194 and 12102121022203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26375522 + ... + 26830437.

It is an arithmetic number, because the mean of its divisors is an integer number (482205615480).

Almost surely, 2^{12102121022222} is an apocalyptic number.

12102121022222 is a deficient number, since it is larger than the sum of its proper divisors (11043748520818).

12102121022222 is a wasteful number, since it uses less digits than its factorization.

12102121022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53206197 (or 53206190 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12102121022222 its reverse (22222012120121), we get a palindrome (34324133142343).

The spelling of 12102121022222 in words is "twelve trillion, one hundred two billion, one hundred twenty-one million, twenty-two thousand, two hundred twenty-two".