1201211120110 has 64 divisors (see below), whose sum is σ = 2243502282240. Its totient is φ = 462578319360.

The previous prime is 1201211120089. The next prime is 1201211120113. The reversal of 1201211120110 is 110211121021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201211120113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64443712 + ... + 64462348.

It is an arithmetic number, because the mean of its divisors is an integer number (35054723160).

Almost surely, 2^{1201211120110} is an apocalyptic number.

1201211120110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201211120110 is a deficient number, since it is larger than the sum of its proper divisors (1042291162130).

1201211120110 is a wasteful number, since it uses less digits than its factorization.

1201211120110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19741.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1201211120110 its reverse (110211121021), we get a palindrome (1311422241131).

The spelling of 1201211120110 in words is "one trillion, two hundred one billion, two hundred eleven million, one hundred twenty thousand, one hundred ten".