1222123112102 has 12 divisors (see below), whose sum is σ = 1934746146756. Its totient is φ = 578900421180.

The previous prime is 1222123112081. The next prime is 1222123112131. The reversal of 1222123112102 is 2012113212221.

It is a super-2 number, since 2×1222123112102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 846344924 + ... + 846346367.

It is an arithmetic number, because the mean of its divisors is an integer number (161228845563).

Almost surely, 2^{1222123112102} is an apocalyptic number.

1222123112102 is a deficient number, since it is larger than the sum of its proper divisors (712623034654).

1222123112102 is a wasteful number, since it uses less digits than its factorization.

1222123112102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692691331 (or 1692691312 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1222123112102 its reverse (2012113212221), we get a palindrome (3234236324323).

The spelling of 1222123112102 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-three million, one hundred twelve thousand, one hundred two".