210202220121222 has 256 divisors, whose sum is σ = 499118736162816. Its totient is φ = 57789987840000.

The previous prime is 210202220121211. The next prime is 210202220121227. The reversal of 210202220121222 is 222121022202012.

It is a super-3 number, since 3×210202220121222³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210202220121227) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 5882891097 + ... + 5882926827.

It is an arithmetic number, because the mean of its divisors is an integer number (1949682563136).

Almost surely, 2^{210202220121222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210202220121222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249559368081408).

210202220121222 is an abundant number, since it is smaller than the sum of its proper divisors (288916516041594).

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

210202220121222 is a wasteful number, since it uses less digits than its factorization.

210202220121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36195.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 210202220121222 its reverse (222121022202012), we get a palindrome (432323242323234).

The spelling of 210202220121222 in words is "two hundred ten trillion, two hundred two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred twenty-two".