2010101220 has 144 divisors (see below), whose sum is σ = 6408642240. Its totient is φ = 509338368.

The previous prime is 2010101141. The next prime is 2010101231. The reversal of 2010101220 is 221010102.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 282871 + ... + 289889.

It is an arithmetic number, because the mean of its divisors is an integer number (44504460).

Almost surely, 2^2010101220 is an apocalyptic number.

2010101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2010101220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3204321120).

2010101220 is an abundant number, since it is smaller than the sum of its proper divisors (4398541020).

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

2010101220 is a wasteful number, since it uses less digits than its factorization.

2010101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114 (or 7109 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2010101220 is about 44834.1523840922. The cubic root of 2010101220 is about 1262.0386121769.

Adding to 2010101220 its reverse (221010102), we get a palindrome (2231111322).

The spelling of 2010101220 in words is "two billion, ten million, one hundred one thousand, two hundred twenty".