422121102 has 48 divisors (see below), whose sum is σ = 918033408. Its totient is φ = 129336480.

The previous prime is 422121061. The next prime is 422121107. The reversal of 422121102 is 201121224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422121107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286227 + ... + 287697.

It is an arithmetic number, because the mean of its divisors is an integer number (19125696).

Almost surely, 2^422121102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422121102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459016704).

422121102 is an abundant number, since it is smaller than the sum of its proper divisors (495912306).

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

422121102 is a wasteful number, since it uses less digits than its factorization.

422121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1772 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 422121102 is about 20545.5859492982. The cubic root of 422121102 is about 750.1458098730.

Adding to 422121102 its reverse (201121224), we get a palindrome (623242326).

The spelling of 422121102 in words is "four hundred twenty-two million, one hundred twenty-one thousand, one hundred two".