1222414420 has 12 divisors (see below), whose sum is σ = 2567070324. Its totient is φ = 488965760.

The previous prime is 1222414387. The next prime is 1222414439. The reversal of 1222414420 is 244142221.

It can be written as a sum of positive squares in 2 ways, for example, as 821854224 + 400560196 = 28668^2 + 20014^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1222414391 and 1222414400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30560341 + ... + 30560380.

It is an arithmetic number, because the mean of its divisors is an integer number (213922527).

Almost surely, 2^1222414420 is an apocalyptic number.

1222414420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222414420 is an abundant number, since it is smaller than the sum of its proper divisors (1344655904).

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

1222414420 is a wasteful number, since it uses less digits than its factorization.

1222414420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61120730 (or 61120728 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1222414420 is about 34963.0436318121. The cubic root of 1222414420 is about 1069.2341507858.

Adding to 1222414420 its reverse (244142221), we get a palindrome (1466556641).

The spelling of 1222414420 in words is "one billion, two hundred twenty-two million, four hundred fourteen thousand, four hundred twenty".