22110420 has 24 divisors (see below), whose sum is σ = 61909344. Its totient is φ = 5896096.

The previous prime is 22110419. The next prime is 22110443. The reversal of 22110420 is 2401122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22110396 and 22110405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184194 + ... + 184313.

It is an arithmetic number, because the mean of its divisors is an integer number (2579556).

Almost surely, 2^22110420 is an apocalyptic number.

22110420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22110420 is an abundant number, since it is smaller than the sum of its proper divisors (39798924).

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

22110420 is a wasteful number, since it uses less digits than its factorization.

22110420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368519 (or 368517 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 22110420 is about 4702.1718386295. The cubic root of 22110420 is about 280.6719406169.

Adding to 22110420 its reverse (2401122), we get a palindrome (24511542).

The spelling of 22110420 in words is "twenty-two million, one hundred ten thousand, four hundred twenty".