1210121122203 has 24 divisors (see below), whose sum is σ = 1998045784800. Its totient is φ = 691364335104.

The previous prime is 1210121122169. The next prime is 1210121122247. The reversal of 1210121122203 is 3022211210121.

It is not a de Polignac number, because 1210121122203 - 2¹⁰ = 1210121121179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210121122253) 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, 1523958 + ... + 2177771.

It is an arithmetic number, because the mean of its divisors is an integer number (83251907700).

Almost surely, 2^{1210121122203} is an apocalyptic number.

1210121122203 is a deficient number, since it is larger than the sum of its proper divisors (787924662597).

1210121122203 is a wasteful number, since it uses less digits than its factorization.

1210121122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706931 (or 3706928 counting only the distinct ones).

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

Adding to 1210121122203 its reverse (3022211210121), we get a palindrome (4232332332324).

The spelling of 1210121122203 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred three".