2221029 has 6 divisors (see below), whose sum is σ = 3208166. Its totient is φ = 1480680.

The previous prime is 2221019. The next prime is 2221031. The reversal of 2221029 is 9201222.

It can be written as a sum of positive squares in only one way, i.e., 1896129 + 324900 = 1377^2 + 570^2 .

It is not a de Polignac number, because 2221029 - 2⁸ = 2220773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123382 + ... + 123399.

2^2221029 is an apocalyptic number.

It is an amenable number.

2221029 is a deficient number, since it is larger than the sum of its proper divisors (987137).

2221029 is a wasteful number, since it uses less digits than its factorization.

2221029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246787 (or 246784 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2221029 is about 1490.3117123609. The cubic root of 2221029 is about 130.4722273220.

It can be divided in two parts, 222102 and 9, that added together give a triangular number (222111 = T₆₆₆).

The spelling of 2221029 in words is "two million, two hundred twenty-one thousand, twenty-nine".