220210101220 has 24 divisors (see below), whose sum is σ = 462479787000. Its totient is φ = 88076692992.

The previous prime is 220210101211. The next prime is 220210101229. The reversal of 220210101220 is 22101012022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220210101211) and next prime (220210101229).

It can be written as a sum of positive squares in 4 ways, for example, as 50703330276 + 169506770944 = 225174^2 + 411712^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220210101220.

It is not an unprimeable number, because it can be changed into a prime (220210101229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210165 + ... + 696124.

It is an arithmetic number, because the mean of its divisors is an integer number (19269991125).

Almost surely, 2^220210101220 is an apocalyptic number.

220210101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220210101220 is an abundant number, since it is smaller than the sum of its proper divisors (242269685780).

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

220210101220 is a wasteful number, since it uses less digits than its factorization.

220210101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918447 (or 918445 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220210101220 its reverse (22101012022), we get a palindrome (242311113242).

The spelling of 220210101220 in words is "two hundred twenty billion, two hundred ten million, one hundred one thousand, two hundred twenty".