10222420 has 24 divisors (see below), whose sum is σ = 23118984. Its totient is φ = 3774336.

The previous prime is 10222417. The next prime is 10222439. The reversal of 10222420 is 2422201.

It can be written as a sum of positive squares in 4 ways, for example, as 956484 + 9265936 = 978^2 + 3044^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 10222420.

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, 19399 + ... + 19918.

It is an arithmetic number, because the mean of its divisors is an integer number (963291).

Almost surely, 2^10222420 is an apocalyptic number.

10222420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222420 is an abundant number, since it is smaller than the sum of its proper divisors (12896564).

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

10222420 is a wasteful number, since it uses less digits than its factorization.

10222420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39339 (or 39337 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 10222420 is about 3197.2519450303. The cubic root of 10222420 is about 217.0290687131.

Adding to 10222420 its reverse (2422201), we get a palindrome (12644621).

It can be divided in two parts, 102 and 22420, that added together give a palindrome (22522).

The spelling of 10222420 in words is "ten million, two hundred twenty-two thousand, four hundred twenty".