7102220 has 12 divisors (see below), whose sum is σ = 14914704. Its totient is φ = 2840880.

The previous prime is 7102213. The next prime is 7102223. The reversal of 7102220 is 222017.

It is a junction number, because it is equal to n+sod(n) for n = 7102195 and 7102204.

It is not an unprimeable number, because it can be changed into a prime (7102223) 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, 177536 + ... + 177575.

It is an arithmetic number, because the mean of its divisors is an integer number (1242892).

Almost surely, 2^7102220 is an apocalyptic number.

It is an amenable number.

7102220 is an abundant number, since it is smaller than the sum of its proper divisors (7812484).

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

7102220 is a wasteful number, since it uses less digits than its factorization.

7102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355120 (or 355118 counting only the distinct ones).

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

The square root of 7102220 is about 2664.9990619135. Note that the first 3 decimals coincide. The cubic root of 7102220 is about 192.2197642750.

Adding to 7102220 its reverse (222017), we get a palindrome (7324237).

It can be divided in two parts, 710 and 2220, that multiplied together give a triangular number (1576200 = T₁₇₇₅).

The spelling of 7102220 in words is "seven million, one hundred two thousand, two hundred twenty".