1211222102103 has 36 divisors (see below), whose sum is σ = 1955587787712. Its totient is φ = 721323308160.

The previous prime is 1211222102059. The next prime is 1211222102113. The reversal of 1211222102103 is 3012012221121.

1211222102103 is a `hidden beast` number, since 121 + 122 + 210 + 210 + 3 = 666.

It is not a de Polignac number, because 1211222102103 - 2¹⁴ = 1211222085719 is a prime.

It is a super-3 number, since 3×1211222102103³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211222102113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12796926 + ... + 12891227.

It is an arithmetic number, because the mean of its divisors is an integer number (54321882992).

Almost surely, 2^{1211222102103} is an apocalyptic number.

1211222102103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1211222102103 is a deficient number, since it is larger than the sum of its proper divisors (744365685609).

1211222102103 is a wasteful number, since it uses less digits than its factorization.

1211222102103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25688216 (or 25688200 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1211222102103 its reverse (3012012221121), we get a palindrome (4223234323224).

The spelling of 1211222102103 in words is "one trillion, two hundred eleven billion, two hundred twenty-two million, one hundred two thousand, one hundred three".