1210200223121 has 8 divisors (see below), whose sum is σ = 1212140845800. Its totient is φ = 1208260737280.

The previous prime is 1210200223109. The next prime is 1210200223147. The reversal of 1210200223121 is 1213220020121.

It can be written as a sum of positive squares in 4 ways, for example, as 18688257025 + 1191511966096 = 136705^2 + 1091564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1210200223121 - 2¹⁰ = 1210200222097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210200223121.

It is not an unprimeable number, because it can be changed into a prime (1210200220121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859495 + ... + 2424483.

It is an arithmetic number, because the mean of its divisors is an integer number (151517605725).

Almost surely, 2^{1210200223121} is an apocalyptic number.

It is an amenable number.

1210200223121 is a deficient number, since it is larger than the sum of its proper divisors (1940622679).

1210200223121 is an equidigital number, since it uses as much as digits as its factorization.

1210200223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568419.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1210200223121 its reverse (1213220020121), we get a palindrome (2423420243242).

The spelling of 1210200223121 in words is "one trillion, two hundred ten billion, two hundred million, two hundred twenty-three thousand, one hundred twenty-one".