22120220220210 has 192 divisors, whose sum is σ = 68351166074880. Its totient is φ = 4856144348160.

The previous prime is 22120220220199. The next prime is 22120220220347. The reversal of 22120220220210 is 1202202202122.

22120220220210 is a `hidden beast` number, since 2 + 2 + 12 + 0 + 220 + 220 + 210 = 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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 320094 + ... + 6659046.

It is an arithmetic number, because the mean of its divisors is an integer number (355995656640).

Almost surely, 2^{22120220220210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22120220220210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34175583037440).

22120220220210 is an abundant number, since it is smaller than the sum of its proper divisors (46230945854670).

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

22120220220210 is a wasteful number, since it uses less digits than its factorization.

22120220220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6339193 (or 6339190 counting only the distinct ones).

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

Adding to 22120220220210 its reverse (1202202202122), we get a palindrome (23322422422332).

It can be divided in two parts, 2 and 2120220220210, that added together give a palindrome (2120220220212).

The spelling of 22120220220210 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty million, two hundred twenty thousand, two hundred ten".