22220110221210 has 320 divisors, whose sum is σ = 69886668741120. Its totient is φ = 5005651322880.

The previous prime is 22220110221209. The next prime is 22220110221223. The reversal of 22220110221210 is 1212201102222.

It is a happy number.

22220110221210 is a `hidden beast` number, since 2 + 2 + 220 + 1 + 10 + 221 + 210 = 666.

It is a super-2 number, since 2×22220110221210² (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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 11037672 + ... + 12894588.

It is an arithmetic number, because the mean of its divisors is an integer number (218395839816).

Almost surely, 2^{22220110221210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220110221210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34943334370560).

22220110221210 is an abundant number, since it is smaller than the sum of its proper divisors (47666558519910).

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

22220110221210 is a wasteful number, since it uses less digits than its factorization.

22220110221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857043 (or 1857034 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22220110221210 its reverse (1212201102222), we get a palindrome (23432311323432).

It can be divided in two parts, 222201102212 and 10, that added together give a palindrome (222201102222).

The spelling of 22220110221210 in words is "twenty-two trillion, two hundred twenty billion, one hundred ten million, two hundred twenty-one thousand, two hundred ten".