211002122 has 4 divisors (see below), whose sum is σ = 316503186. Its totient is φ = 105501060.

The previous prime is 211002107. The next prime is 211002149. The reversal of 211002122 is 221200112.

It is a happy number.

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., 174266401 + 36735721 = 13201^2 + 6061^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52750529 + ... + 52750532.

Almost surely, 2^211002122 is an apocalyptic number.

211002122 is a deficient number, since it is larger than the sum of its proper divisors (105501064).

211002122 is a wasteful number, since it uses less digits than its factorization.

211002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105501063.

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

The square root of 211002122 is about 14525.9120884026. The cubic root of 211002122 is about 595.3361770404.

Adding to 211002122 its reverse (221200112), we get a palindrome (432202234).

The spelling of 211002122 in words is "two hundred eleven million, two thousand, one hundred twenty-two".