10210101220 has 48 divisors (see below), whose sum is σ = 23417952768. Its totient is φ = 3708392960.

The previous prime is 10210101191. The next prime is 10210101227. The reversal of 10210101220 is 2210101201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10210101197 and 10210101206.

It is not an unprimeable number, because it can be changed into a prime (10210101227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162972 + ... + 216748.

It is an arithmetic number, because the mean of its divisors is an integer number (487874016).

Almost surely, 2^10210101220 is an apocalyptic number.

10210101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10210101220 is an abundant number, since it is smaller than the sum of its proper divisors (13207851548).

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

10210101220 is a wasteful number, since it uses less digits than its factorization.

10210101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54660 (or 54658 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10210101220 its reverse (2210101201), we get a palindrome (12420202421).

The spelling of 10210101220 in words is "ten billion, two hundred ten million, one hundred one thousand, two hundred twenty".