1051220 has 12 divisors (see below), whose sum is σ = 2207604. Its totient is φ = 420480.

The previous prime is 1051181. The next prime is 1051247. The reversal of 1051220 is 221501.

It can be written as a sum of positive squares in 2 ways, for example, as 659344 + 391876 = 812^2 + 626^2 .

It is a super-2 number, since 2×1051220² = 2210126976800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26261 + ... + 26300.

It is an arithmetic number, because the mean of its divisors is an integer number (183967).

2^1051220 is an apocalyptic number.

1051220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051220 is an abundant number, since it is smaller than the sum of its proper divisors (1156384).

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

1051220 is a wasteful number, since it uses less digits than its factorization.

1051220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52570 (or 52568 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1051220 is about 1025.2902028206. The cubic root of 1051220 is about 101.6789856373.

Adding to 1051220 its reverse (221501), we get a palindrome (1272721).

The spelling of 1051220 in words is "one million, fifty-one thousand, two hundred twenty".