11101020210 has 192 divisors, whose sum is σ = 33595810560. Its totient is φ = 2490808320.

The previous prime is 11101020209. The next prime is 11101020211. The reversal of 11101020210 is 1202010111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11101020209) and next prime (11101020211).

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 = 11101020192 and 11101020201.

It is not an unprimeable number, because it can be changed into a prime (11101020211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12922761 + ... + 12923619.

It is an arithmetic number, because the mean of its divisors is an integer number (174978180).

Almost surely, 2^11101020210 is an apocalyptic number.

11101020210 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 11101020210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16797905280).

11101020210 is an abundant number, since it is smaller than the sum of its proper divisors (22494790350).

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

11101020210 is a wasteful number, since it uses less digits than its factorization.

11101020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233 (or 1230 counting only the distinct ones).

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

Adding to 11101020210 its reverse (1202010111), we get a palindrome (12303030321).

The spelling of 11101020210 in words is "eleven billion, one hundred one million, twenty thousand, two hundred ten".