2152222 has 4 divisors (see below), whose sum is σ = 3228336. Its totient is φ = 1076110.

The previous prime is 2152219. The next prime is 2152229. The reversal of 2152222 is 2222512.

2152222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2152196 and 2152205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538054 + ... + 538057.

It is an arithmetic number, because the mean of its divisors is an integer number (807084).

2^2152222 is an apocalyptic number.

2152222 is a deficient number, since it is larger than the sum of its proper divisors (1076114).

2152222 is a wasteful number, since it uses less digits than its factorization.

2152222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076113.

The product of its digits is 160, while the sum is 16.

The square root of 2152222 is about 1467.0453299063. The cubic root of 2152222 is about 129.1107355949.

Adding to 2152222 its reverse (2222512), we get a palindrome (4374734).

The spelling of 2152222 in words is "two million, one hundred fifty-two thousand, two hundred twenty-two".