22220030 has 48 divisors (see below), whose sum is σ = 47007216. Its totient is φ = 7539840.

The previous prime is 22220027. The next prime is 22220041. The reversal of 22220030 is 3002222.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22219993 and 22220020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66965 + ... + 67295.

It is an arithmetic number, because the mean of its divisors is an integer number (979317).

Almost surely, 2^22220030 is an apocalyptic number.

22220030 is an abundant number, since it is smaller than the sum of its proper divisors (24787186).

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

22220030 is a wasteful number, since it uses less digits than its factorization.

22220030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 22220030 is about 4713.8126818956. The cubic root of 22220030 is about 281.1349765041.

Adding to 22220030 its reverse (3002222), we get a palindrome (25222252).

The spelling of 22220030 in words is "twenty-two million, two hundred twenty thousand, thirty".