2129222 has 12 divisors (see below), whose sum is σ = 3263820. Its totient is φ = 1041768.

The previous prime is 2129221. The next prime is 2129227. The reversal of 2129222 is 2229212.

It is a junction number, because it is equal to n+sod(n) for n = 2129194 and 2129203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129221) 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, 5429 + ... + 5807.

It is an arithmetic number, because the mean of its divisors is an integer number (271985).

2^2129222 is an apocalyptic number.

2129222 is a deficient number, since it is larger than the sum of its proper divisors (1134598).

2129222 is an equidigital number, since it uses as much as digits as its factorization.

2129222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 434 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 2129222 is about 1459.1853891812. The cubic root of 2129222 is about 128.6491679186.

The spelling of 2129222 in words is "two million, one hundred twenty-nine thousand, two hundred twenty-two".