1210444002121 has 16 divisors (see below), whose sum is σ = 1318447166400. Its totient is φ = 1106891956800.

The previous prime is 1210444002113. The next prime is 1210444002169. The reversal of 1210444002121 is 1212004440121.

It is a cyclic number.

It is not a de Polignac number, because 1210444002121 - 2³ = 1210444002113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210444002092 and 1210444002101.

It is not an unprimeable number, because it can be changed into a prime (1210444402121) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1736151 + ... + 2331331.

It is an arithmetic number, because the mean of its divisors is an integer number (82402947900).

Almost surely, 2^{1210444002121} is an apocalyptic number.

It is an amenable number.

1210444002121 is a deficient number, since it is larger than the sum of its proper divisors (108003164279).

1210444002121 is a wasteful number, since it uses less digits than its factorization.

1210444002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598920.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 1210444002121 its reverse (1212004440121), we get a palindrome (2422448442242).

The spelling of 1210444002121 in words is "one trillion, two hundred ten billion, four hundred forty-four million, two thousand, one hundred twenty-one".