211122122 has 4 divisors (see below), whose sum is σ = 316683186. Its totient is φ = 105561060.

The previous prime is 211122101. The next prime is 211122137. The reversal of 211122122 is 221221112.

211122122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194630401 + 16491721 = 13951^2 + 4061^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 211122097 and 211122106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52780529 + ... + 52780532.

Almost surely, 2^211122122 is an apocalyptic number.

211122122 is a deficient number, since it is larger than the sum of its proper divisors (105561064).

211122122 is a wasteful number, since it uses less digits than its factorization.

211122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105561063.

The product of its digits is 32, while the sum is 14.

The square root of 211122122 is about 14530.0420508683. The cubic root of 211122122 is about 595.4490144561.

Adding to 211122122 its reverse (221221112), we get a palindrome (432343234).

The spelling of 211122122 in words is "two hundred eleven million, one hundred twenty-two thousand, one hundred twenty-two".