2122222 has 8 divisors (see below), whose sum is σ = 3257496. Its totient is φ = 1036392.

The previous prime is 2122213. The next prime is 2122231. The reversal of 2122222 is 2222212.

It is an interprime number because it is at equal distance from previous prime (2122213) and next prime (2122231).

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

It is a nude number because it is divisible by every one of its digits.

2122222 is a modest number, since divided by 2222 gives 212 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12253 + ... + 12424.

It is an arithmetic number, because the mean of its divisors is an integer number (407187).

2^2122222 is an apocalyptic number.

2122222 is a deficient number, since it is larger than the sum of its proper divisors (1135274).

2122222 is a wasteful number, since it uses less digits than its factorization.

2122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24722.

The product of its digits is 64, while the sum is 13.

The square root of 2122222 is about 1456.7848159560. The cubic root of 2122222 is about 128.5080314137.

Adding to 2122222 its reverse (2222212), we get a palindrome (4344434).

The spelling of 2122222 in words is "two million, one hundred twenty-two thousand, two hundred twenty-two".