211222220002111 has 16 divisors (see below), whose sum is σ = 219623011502400. Its totient is φ = 202895989325568.

The previous prime is 211222220002093. The next prime is 211222220002219. The reversal of 211222220002111 is 111200022222112.

It is a cyclic number.

It is not a de Polignac number, because 211222220002111 - 2⁹ = 211222220001599 is a prime.

It is a super-2 number, since 2×211222220002111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222220000111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157427830 + ... + 158763868.

It is an arithmetic number, because the mean of its divisors is an integer number (13726438218900).

Almost surely, 2^{211222220002111} is an apocalyptic number.

211222220002111 is a deficient number, since it is larger than the sum of its proper divisors (8400791500289).

211222220002111 is a wasteful number, since it uses less digits than its factorization.

211222220002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363938.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211222220002111 its reverse (111200022222112), we get a palindrome (322422242224223).

The spelling of 211222220002111 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty million, two thousand, one hundred eleven".