210122022011 has 4 divisors (see below), whose sum is σ = 229224024024. Its totient is φ = 191020020000.

The previous prime is 210122021981. The next prime is 210122022017. The reversal of 210122022011 is 110220221012.

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

It is a cyclic number.

It is not a de Polignac number, because 210122022011 - 2⁶ = 210122021947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210122022017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9551000990 + ... + 9551001011.

It is an arithmetic number, because the mean of its divisors is an integer number (57306006006).

Almost surely, 2^210122022011 is an apocalyptic number.

210122022011 is a deficient number, since it is larger than the sum of its proper divisors (19102002013).

210122022011 is a wasteful number, since it uses less digits than its factorization.

210122022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19102002012.

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

Adding to 210122022011 its reverse (110220221012), we get a palindrome (320342243023).

The spelling of 210122022011 in words is "two hundred ten billion, one hundred twenty-two million, twenty-two thousand, eleven".