211111111022 has 8 divisors (see below), whose sum is σ = 361904761776. Its totient is φ = 90476190432.

The previous prime is 211111110923. The next prime is 211111111027. The reversal of 211111111022 is 220111111112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 15079365073 = 211111111022 / (2 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 211111110988 and 211111111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211111111027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7539682523 + ... + 7539682550.

It is an arithmetic number, because the mean of its divisors is an integer number (45238095222).

Almost surely, 2^211111111022 is an apocalyptic number.

211111111022 is a deficient number, since it is larger than the sum of its proper divisors (150793650754).

211111111022 is a wasteful number, since it uses less digits than its factorization.

211111111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15079365082.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 211111111022 its reverse (220111111112), we get a palindrome (431222222134).

The spelling of 211111111022 in words is "two hundred eleven billion, one hundred eleven million, one hundred eleven thousand, twenty-two".