2107220 has 12 divisors (see below), whose sum is σ = 4425204. Its totient is φ = 842880.

The previous prime is 2107207. The next prime is 2107223. The reversal of 2107220 is 227012.

It can be written as a sum of positive squares in 2 ways, for example, as 1336336 + 770884 = 1156^2 + 878^2 .

It is a super-2 number, since 2×2107220² = 8880752256800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2107195 and 2107204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2107223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52661 + ... + 52700.

It is an arithmetic number, because the mean of its divisors is an integer number (368767).

2^2107220 is an apocalyptic number.

2107220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2107220 is an abundant number, since it is smaller than the sum of its proper divisors (2317984).

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

2107220 is a wasteful number, since it uses less digits than its factorization.

2107220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105370 (or 105368 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 2107220 is about 1451.6266737698. The cubic root of 2107220 is about 128.2045070671.

The spelling of 2107220 in words is "two million, one hundred seven thousand, two hundred twenty".