211200202210122 has 64 divisors (see below), whose sum is σ = 470990390774400. Its totient is φ = 70151959405440.

The previous prime is 211200202210111. The next prime is 211200202210163. The reversal of 211200202210122 is 221012202002112.

It is a happy number.

211200202210122 is a `hidden beast` number, since 211 + 20 + 0 + 202 + 210 + 1 + 22 = 666.

It is a super-4 number, since 4×211200202210122⁴ (a number of 58 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211200202210095 and 211200202210104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14521222 + ... + 25164782.

It is an arithmetic number, because the mean of its divisors is an integer number (7359224855850).

Almost surely, 2^{211200202210122} is an apocalyptic number.

211200202210122 is an abundant number, since it is smaller than the sum of its proper divisors (259790188564278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211200202210122 is a wasteful number, since it uses less digits than its factorization.

211200202210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10644868 (or 10644862 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 211200202210122 its reverse (221012202002112), we get a palindrome (432212404212234).

The spelling of 211200202210122 in words is "two hundred eleven trillion, two hundred billion, two hundred two million, two hundred ten thousand, one hundred twenty-two".