22211112210210 has 288 divisors, whose sum is σ = 74485699913664. Its totient is φ = 4539634848000.

The previous prime is 22211112210193. The next prime is 22211112210241. The reversal of 22211112210210 is 1201221111222.

22211112210210 is a `hidden beast` number, since 2 + 221 + 1 + 11 + 221 + 0 + 210 = 666.

It is a super-2 number, since 2×22211112210210² (a number of 27 digits) contains 22 as substring.

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, 793896 + ... + 6712115.

It is an arithmetic number, because the mean of its divisors is an integer number (258630902478).

Almost surely, 2^{22211112210210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22211112210210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37242849956832).

22211112210210 is an abundant number, since it is smaller than the sum of its proper divisors (52274587703454).

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

22211112210210 is a wasteful number, since it uses less digits than its factorization.

22211112210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7506110 (or 7506100 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22211112210210 its reverse (1201221111222), we get a palindrome (23412333321432).

The spelling of 22211112210210 in words is "twenty-two trillion, two hundred eleven billion, one hundred twelve million, two hundred ten thousand, two hundred ten".