211022012 has 6 divisors (see below), whose sum is σ = 369288528. Its totient is φ = 105511004.

The previous prime is 211021949. The next prime is 211022041. The reversal of 211022012 is 210220112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211021984 and 211022002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26377748 + ... + 26377755.

It is an arithmetic number, because the mean of its divisors is an integer number (61548088).

Almost surely, 2^211022012 is an apocalyptic number.

It is an amenable number.

211022012 is a deficient number, since it is larger than the sum of its proper divisors (158266516).

211022012 is a wasteful number, since it uses less digits than its factorization.

211022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52755507 (or 52755505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 211022012 is about 14526.5967108611. The cubic root of 211022012 is about 595.3548827994.

Adding to 211022012 its reverse (210220112), we get a palindrome (421242124).

The spelling of 211022012 in words is "two hundred eleven million, twenty-two thousand, twelve".