1222080 has 112 divisors (see below), whose sum is σ = 4145280. Its totient is φ = 304128.

The previous prime is 1222063. The next prime is 1222097. The reversal of 1222080 is 802221.

It is an interprime number because it is at equal distance from previous prime (1222063) and next prime (1222097).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 18207 + ... + 18273.

2^1222080 is an apocalyptic number.

1222080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2072640).

1222080 is an abundant number, since it is smaller than the sum of its proper divisors (2923200).

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

1222080 is a wasteful number, since it uses less digits than its factorization.

1222080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1222080 is about 1105.4772724937. The cubic root of 1222080 is about 106.9136637239.

The spelling of 1222080 in words is "one million, two hundred twenty-two thousand, eighty".