10101220110 has 96 divisors (see below), whose sum is σ = 27138878208. Its totient is φ = 2604026880.

The previous prime is 10101220099. The next prime is 10101220111. The reversal of 10101220110 is 1102210101.

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 = 10101220092 and 10101220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101220111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5224704 + ... + 5226636.

It is an arithmetic number, because the mean of its divisors is an integer number (282696648).

Almost surely, 2^10101220110 is an apocalyptic number.

10101220110 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 10101220110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13569439104).

10101220110 is an abundant number, since it is smaller than the sum of its proper divisors (17037658098).

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

10101220110 is a wasteful number, since it uses less digits than its factorization.

10101220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850 (or 3847 counting only the distinct ones).

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

Adding to 10101220110 its reverse (1102210101), we get a palindrome (11203430211).

The spelling of 10101220110 in words is "ten billion, one hundred one million, two hundred twenty thousand, one hundred ten".