2222422420 has 12 divisors (see below), whose sum is σ = 4667087124. Its totient is φ = 888968960.

The previous prime is 2222422409. The next prime is 2222422429. The reversal of 2222422420 is 242242222.

2222422420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1635717136 + 586705284 = 40444^2 + 24222^2 .

It is a super-2 number, since 2×2222422420² = 9878322825837312800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2222422391 and 2222422400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222422429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55560541 + ... + 55560580.

It is an arithmetic number, because the mean of its divisors is an integer number (388923927).

Almost surely, 2^2222422420 is an apocalyptic number.

2222422420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222422420 is an abundant number, since it is smaller than the sum of its proper divisors (2444664704).

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

2222422420 is a wasteful number, since it uses less digits than its factorization.

2222422420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111121130 (or 111121128 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 2222422420 is about 47142.5754493748. The cubic root of 2222422420 is about 1304.9950666030.

Adding to 2222422420 its reverse (242242222), we get a palindrome (2464664642).

It can be divided in two parts, 22224 and 22420, that added together give a palindrome (44644).

The spelling of 2222422420 in words is "two billion, two hundred twenty-two million, four hundred twenty-two thousand, four hundred twenty".