211210102210122 has 12 divisors (see below), whose sum is σ = 457621888121970. Its totient is φ = 70403367403368.

The previous prime is 211210102210061. The next prime is 211210102210139. The reversal of 211210102210122 is 221012201012112.

211210102210122 is a `hidden beast` number, since 21 + 1 + 210 + 102 + 210 + 122 = 666.

It can be written as a sum of positive squares in only one way, i.e., 155390958979281 + 55819143230841 = 12465591^2 + 7471221^2 .

It is a super-2 number, since 2×211210102210122² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11733894567229 = 211210102210122 / (2 + 1 + 1 + 2 + 1 + 0 + 1 + 0 + 2 + 2 + 1 + 0 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 211210102210095 and 211210102210104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5866947283597 + ... + 5866947283632.

Almost surely, 2^{211210102210122} is an apocalyptic number.

211210102210122 is an abundant number, since it is smaller than the sum of its proper divisors (246411785911848).

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

211210102210122 is a wasteful number, since it uses less digits than its factorization.

211210102210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11733894567237 (or 11733894567234 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211210102210122 its reverse (221012201012112), we get a palindrome (432222303222234).

The spelling of 211210102210122 in words is "two hundred eleven trillion, two hundred ten billion, one hundred two million, two hundred ten thousand, one hundred twenty-two".