222040212210 has 96 divisors (see below), whose sum is σ = 602553893760. Its totient is φ = 56622322944.

The previous prime is 222040212209. The next prime is 222040212223. The reversal of 222040212210 is 12212040222.

222040212210 is a `hidden beast` number, since 22 + 20 + 402 + 1 + 221 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10275037 + ... + 10296623.

It is an arithmetic number, because the mean of its divisors is an integer number (6276603060).

Almost surely, 2^222040212210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222040212210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301276946880).

222040212210 is an abundant number, since it is smaller than the sum of its proper divisors (380513681550).

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

222040212210 is a wasteful number, since it uses less digits than its factorization.

222040212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26592 (or 26589 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222040212210 its reverse (12212040222), we get a palindrome (234252252432).

The spelling of 222040212210 in words is "two hundred twenty-two billion, forty million, two hundred twelve thousand, two hundred ten".