2221051 has 8 divisors (see below), whose sum is σ = 2553824. Its totient is φ = 1892160.

The previous prime is 2221031. The next prime is 2221061. The reversal of 2221051 is 1501222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221051 - 2⁵ = 2221019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (319228).

2^2221051 is an apocalyptic number.

2221051 is a deficient number, since it is larger than the sum of its proper divisors (332773).

2221051 is a wasteful number, since it uses less digits than its factorization.

2221051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2221051 is about 1490.3190933488. The cubic root of 2221051 is about 130.4726581102.

Adding to 2221051 its reverse (1501222), we get a palindrome (3722273).

The spelling of 2221051 in words is "two million, two hundred twenty-one thousand, fifty-one".