10101010220 has 24 divisors (see below), whose sum is σ = 24242424864. Its totient is φ = 3463203456.

The previous prime is 10101010201. The next prime is 10101010243. The reversal of 10101010220 is 2201010101.

It is a junction number, because it is equal to n+sod(n) for n = 10101010198 and 10101010207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36074897 + ... + 36075176.

It is an arithmetic number, because the mean of its divisors is an integer number (1010101036).

Almost surely, 2^10101010220 is an apocalyptic number.

10101010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101010220 is an abundant number, since it is smaller than the sum of its proper divisors (14141414644).

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

10101010220 is a wasteful number, since it uses less digits than its factorization.

10101010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72150089 (or 72150087 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10101010220 its reverse (2201010101), we get a palindrome (12302020321).

The spelling of 10101010220 in words is "ten billion, one hundred one million, ten thousand, two hundred twenty".