1210101210 has 96 divisors (see below), whose sum is σ = 3214935360. Its totient is φ = 315705600.

The previous prime is 1210101163. The next prime is 1210101229. The reversal of 1210101210 is 121010121.

It is a happy number.

1210101210 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a super-4 number, since 4×1210101210⁴ (a number of 37 digits) contains 4444 as substring.

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

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1210101192 and 1210101201.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1491705 + ... + 1492515.

It is an arithmetic number, because the mean of its divisors is an integer number (33488910).

Almost surely, 2^1210101210 is an apocalyptic number.

1210101210 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 1210101210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1607467680).

1210101210 is an abundant number, since it is smaller than the sum of its proper divisors (2004834150).

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

1210101210 is a wasteful number, since it uses less digits than its factorization.

1210101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1161 counting only the distinct ones).

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

The square root of 1210101210 is about 34786.5090228956. The cubic root of 1210101210 is about 1065.6319465725.

Adding to 1210101210 its reverse (121010121), we get a palindrome (1331111331).

The spelling of 1210101210 in words is "one billion, two hundred ten million, one hundred one thousand, two hundred ten".