222011220210 has 128 divisors (see below), whose sum is σ = 588393179136. Its totient is φ = 53263042560.

The previous prime is 222011220127. The next prime is 222011220229. The reversal of 222011220210 is 12022110222.

222011220210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222011220210² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 222011220210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17470719 + ... + 17483421.

It is an arithmetic number, because the mean of its divisors is an integer number (4596821712).

Almost surely, 2^222011220210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222011220210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294196589568).

222011220210 is an abundant number, since it is smaller than the sum of its proper divisors (366381958926).

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

222011220210 is a wasteful number, since it uses less digits than its factorization.

222011220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13860.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222011220210 its reverse (12022110222), we get a palindrome (234033330432).

The spelling of 222011220210 in words is "two hundred twenty-two billion, eleven million, two hundred twenty thousand, two hundred ten".