10611220 has 24 divisors (see below), whose sum is σ = 22353408. Its totient is φ = 4231200.

The previous prime is 10611157. The next prime is 10611221. The reversal of 10611220 is 2211601.

It is a super-2 number, since 2×10611220² = 225195979776800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10611220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10611221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8005 + ... + 9235.

It is an arithmetic number, because the mean of its divisors is an integer number (931392).

Almost surely, 2^10611220 is an apocalyptic number.

10611220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10611220 is an abundant number, since it is smaller than the sum of its proper divisors (11742188).

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

10611220 is a wasteful number, since it uses less digits than its factorization.

10611220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 10611220 is about 3257.4867612931. The cubic root of 10611220 is about 219.7464020002.

Adding to 10611220 its reverse (2211601), we get a palindrome (12822821).

The spelling of 10611220 in words is "ten million, six hundred eleven thousand, two hundred twenty".