2221076 has 36 divisors (see below), whose sum is σ = 4614036. Its totient is φ = 929280.

The previous prime is 2221069. The next prime is 2221097. The reversal of 2221076 is 6701222.

It can be written as a sum of positive squares in 2 ways, for example, as 592900 + 1628176 = 770^2 + 1276^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6116 + ... + 6468.

2^2221076 is an apocalyptic number.

2221076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2221076 is an abundant number, since it is smaller than the sum of its proper divisors (2392960).

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

2221076 is a wasteful number, since it uses less digits than its factorization.

2221076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2221076 is about 1490.3274807907. The cubic root of 2221076 is about 130.4731476388.

Adding to 2221076 its reverse (6701222), we get a palindrome (8922298).

The spelling of 2221076 in words is "two million, two hundred twenty-one thousand, seventy-six".