10221654 has 32 divisors (see below), whose sum is σ = 21229056. Its totient is φ = 3278880.

The previous prime is 10221649. The next prime is 10221671. The reversal of 10221654 is 45612201.

It is a self number, because there is not a number n which added to its sum of digits gives 10221654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18624 + ... + 19164.

It is an arithmetic number, because the mean of its divisors is an integer number (663408).

Almost surely, 2^10221654 is an apocalyptic number.

10221654 is an abundant number, since it is smaller than the sum of its proper divisors (11007402).

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

10221654 is a wasteful number, since it uses less digits than its factorization.

10221654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 10221654 is about 3197.1321524141. The cubic root of 10221654 is about 217.0236476738.

Adding to 10221654 its reverse (45612201), we get a palindrome (55833855).

The spelling of 10221654 in words is "ten million, two hundred twenty-one thousand, six hundred fifty-four".