211020122 has 8 divisors (see below), whose sum is σ = 317236500. Its totient is φ = 105274624.

The previous prime is 211020119. The next prime is 211020127. The reversal of 211020122 is 221020112.

Adding to 211020122 its reverse (221020112), we get a palindrome (432040234).

It is a happy number.

211020122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 204461401 + 6558721 = 14299^2 + 2561^2 .

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

It is not an unprimeable number, because it can be changed into a prime (211020127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116597 + ... + 118392.

Almost surely, 2^211020122 is an apocalyptic number.

211020122 is a deficient number, since it is larger than the sum of its proper divisors (106216378).

211020122 is a wasteful number, since it uses less digits than its factorization.

211020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235440.

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

The square root of 211020122 is about 14526.5316576256. The cubic root of 211020122 is about 595.3531053796.

The spelling of 211020122 in words is "two hundred eleven million, twenty thousand, one hundred twenty-two".