22212213210 has 288 divisors, whose sum is σ = 65251630080. Its totient is φ = 5236704000.

The previous prime is 22212213197. The next prime is 22212213263. The reversal of 22212213210 is 1231221222.

22212213210 is a `hidden beast` number, since 222 + 122 + 1 + 321 + 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 143 ways as a sum of consecutive naturals, for example, 116294215 + ... + 116294405.

It is an arithmetic number, because the mean of its divisors is an integer number (226568160).

Almost surely, 2^22212213210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22212213210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32625815040).

22212213210 is an abundant number, since it is smaller than the sum of its proper divisors (43039416870).

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

22212213210 is a wasteful number, since it uses less digits than its factorization.

22212213210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22212213210 its reverse (1231221222), we get a palindrome (23443434432).

The spelling of 22212213210 in words is "twenty-two billion, two hundred twelve million, two hundred thirteen thousand, two hundred ten".