211122100020222 has 40 divisors (see below), whose sum is σ = 473072237593032. Its totient is φ = 70373684228400.

The previous prime is 211122100020211. The next prime is 211122100020319. The reversal of 211122100020222 is 222020001221112.

It is a happy number.

211122100020222 is a `hidden beast` number, since 211 + 1 + 2 + 210 + 0 + 0 + 20 + 222 = 666.

It is a super-2 number, since 2×211122100020222² (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).

It is a junction number, because it is equal to n+sod(n) for n = 211122100020195 and 211122100020204.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 30614772 + ... + 36871512.

Almost surely, 2^{211122100020222} is an apocalyptic number.

211122100020222 is an abundant number, since it is smaller than the sum of its proper divisors (261950137572810).

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

211122100020222 is a wasteful number, since it uses less digits than its factorization.

211122100020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465046 (or 6465037 counting only the distinct ones).

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

Adding to 211122100020222 its reverse (222020001221112), we get a palindrome (433142101241334).

The spelling of 211122100020222 in words is "two hundred eleven trillion, one hundred twenty-two billion, one hundred million, twenty thousand, two hundred twenty-two".