1211021102110 has 64 divisors (see below), whose sum is σ = 2210973609600. Its totient is φ = 477532495872.

The previous prime is 1211021102107. The next prime is 1211021102113. The reversal of 1211021102110 is 112011201121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1211021102107) and next prime (1211021102113).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211021102113) 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, 326506936 + ... + 326510644.

It is an arithmetic number, because the mean of its divisors is an integer number (34546462650).

Almost surely, 2^{1211021102110} is an apocalyptic number.

1211021102110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211021102110 is a deficient number, since it is larger than the sum of its proper divisors (999952507490).

1211021102110 is a wasteful number, since it uses less digits than its factorization.

1211021102110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045.

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

Adding to 1211021102110 its reverse (112011201121), we get a palindrome (1323032303231).

It can be divided in two parts, 1211021 and 102110, that added together give a palindrome (1313131).

The spelling of 1211021102110 in words is "one trillion, two hundred eleven billion, twenty-one million, one hundred two thousand, one hundred ten".