1210121222103 has 24 divisors (see below), whose sum is σ = 1840277004800. Its totient is φ = 764151419664.

The previous prime is 1210121222099. The next prime is 1210121222113. The reversal of 1210121222103 is 3012221210121.

It is not a de Polignac number, because 1210121222103 - 2² = 1210121222099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210121222113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 342426 + ... + 1592952.

Almost surely, 2^{1210121222103} is an apocalyptic number.

1210121222103 is a deficient number, since it is larger than the sum of its proper divisors (630155782697).

1210121222103 is a wasteful number, since it uses less digits than its factorization.

1210121222103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256211 (or 1256208 counting only the distinct ones).

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

Adding to 1210121222103 its reverse (3012221210121), we get a palindrome (4222342432224).

The spelling of 1210121222103 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred three".