1201321110210 has 32 divisors (see below), whose sum is σ = 3104953024320. Its totient is φ = 295709811648.

The previous prime is 1201321110179. The next prime is 1201321110217. The reversal of 1201321110210 is 120111231021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1201321110210.

It is not an unprimeable number, because it can be changed into a prime (1201321110217) 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, 1540154880 + ... + 1540155659.

It is an arithmetic number, because the mean of its divisors is an integer number (97029782010).

Almost surely, 2^{1201321110210} is an apocalyptic number.

1201321110210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201321110210 is an abundant number, since it is smaller than the sum of its proper divisors (1903631914110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201321110210 is a wasteful number, since it uses less digits than its factorization.

1201321110210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080310562.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1201321110210 its reverse (120111231021), we get a palindrome (1321432341231).

The spelling of 1201321110210 in words is "one trillion, two hundred one billion, three hundred twenty-one million, one hundred ten thousand, two hundred ten".