222122313210 has 128 divisors (see below), whose sum is σ = 629434220544. Its totient is φ = 49091546880.

The previous prime is 222122313209. The next prime is 222122313221. The reversal of 222122313210 is 12313221222.

It is a super-2 number, since 2×222122313210² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8039079 + ... + 8066661.

It is an arithmetic number, because the mean of its divisors is an integer number (4917454848).

Almost surely, 2^222122313210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222122313210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314717110272).

222122313210 is an abundant number, since it is smaller than the sum of its proper divisors (407311907334).

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

222122313210 is a wasteful number, since it uses less digits than its factorization.

222122313210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28868.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 222122313210 its reverse (12313221222), we get a palindrome (234435534432).

The spelling of 222122313210 in words is "two hundred twenty-two billion, one hundred twenty-two million, three hundred thirteen thousand, two hundred ten".