1210001002110 has 128 divisors (see below), whose sum is σ = 3258077281920. Its totient is φ = 319531161600.

The previous prime is 1210001002097. The next prime is 1210001002153. The reversal of 1210001002110 is 112001000121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1210001002092 and 1210001002101.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 36015520 + ... + 36049100.

It is an arithmetic number, because the mean of its divisors is an integer number (25453728765).

Almost surely, 2^{1210001002110} is an apocalyptic number.

1210001002110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210001002110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629038640960).

1210001002110 is an abundant number, since it is smaller than the sum of its proper divisors (2048076279810).

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

1210001002110 is a wasteful number, since it uses less digits than its factorization.

1210001002110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34891 (or 34885 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1210001002110 its reverse (112001000121), we get a palindrome (1322002002231).

The spelling of 1210001002110 in words is "one trillion, two hundred ten billion, one million, two thousand, one hundred ten".