2220351 has 16 divisors (see below), whose sum is σ = 3531264. Its totient is φ = 1213344.

The previous prime is 2220349. The next prime is 2220367. The reversal of 2220351 is 1530222.

It is not a de Polignac number, because 2220351 - 2¹ = 2220349 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 2¹² + 2¹⁸ + 0 + 3⁶ + 5⁹ + 1 .

It is a self number, because there is not a number n which added to its sum of digits gives 2220351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1816 + ... + 2781.

It is an arithmetic number, because the mean of its divisors is an integer number (220704).

2^2220351 is an apocalyptic number.

2220351 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2220351 is a deficient number, since it is larger than the sum of its proper divisors (1310913).

2220351 is a wasteful number, since it uses less digits than its factorization.

2220351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2220351 is about 1490.0842258074. The cubic root of 2220351 is about 130.4589498167.

Adding to 2220351 its reverse (1530222), we get a palindrome (3750573).

The spelling of 2220351 in words is "two million, two hundred twenty thousand, three hundred fifty-one".