211210222212210 has 32 divisors (see below), whose sum is σ = 545897189718720. Its totient is φ = 51990208544448.

The previous prime is 211210222212193. The next prime is 211210222212221. The reversal of 211210222212210 is 12212222012112.

It is a super-2 number, since 2×211210222212210² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270782335780 + ... + 270782336559.

It is an arithmetic number, because the mean of its divisors is an integer number (17059287178710).

Almost surely, 2^{211210222212210} is an apocalyptic number.

211210222212210 is an abundant number, since it is smaller than the sum of its proper divisors (334686967506510).

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

211210222212210 is a wasteful number, since it uses less digits than its factorization.

211210222212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541564672362.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211210222212210 its reverse (12212222012112), we get a palindrome (223422444224322).

The spelling of 211210222212210 in words is "two hundred eleven trillion, two hundred ten billion, two hundred twenty-two million, two hundred twelve thousand, two hundred ten".