211210211021222 has 16 divisors (see below), whose sum is σ = 362108783162880. Its totient is φ = 90510127941768.

The previous prime is 211210211021179. The next prime is 211210211021267. The reversal of 211210211021222 is 222120112012112.

It is a super-2 number, since 2×211210211021222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211210211021194 and 211210211021203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711006572 + ... + 711303567.

It is an arithmetic number, because the mean of its divisors is an integer number (22631798947680).

Almost surely, 2^{211210211021222} is an apocalyptic number.

211210211021222 is a deficient number, since it is larger than the sum of its proper divisors (150898572141658).

211210211021222 is a wasteful number, since it uses less digits than its factorization.

211210211021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422320755.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211210211021222 its reverse (222120112012112), we get a palindrome (433330323033334).

The spelling of 211210211021222 in words is "two hundred eleven trillion, two hundred ten billion, two hundred eleven million, twenty-one thousand, two hundred twenty-two".