211042222 has 12 divisors (see below), whose sum is σ = 327858336. Its totient is φ = 101881640.

The previous prime is 211042207. The next prime is 211042231. The reversal of 211042222 is 222240112.

It is a junction number, because it is equal to n+sod(n) for n = 211042196 and 211042205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61054 + ... + 64417.

It is an arithmetic number, because the mean of its divisors is an integer number (27321528).

Almost surely, 2^211042222 is an apocalyptic number.

211042222 is a deficient number, since it is larger than the sum of its proper divisors (116816114).

211042222 is a wasteful number, since it uses less digits than its factorization.

211042222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125531 (or 125502 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 211042222 is about 14527.2923148121. The cubic root of 211042222 is about 595.3738883019.

Adding to 211042222 its reverse (222240112), we get a palindrome (433282334).

The spelling of 211042222 in words is "two hundred eleven million, forty-two thousand, two hundred twenty-two".