212110223011 has 4 divisors (see below), whose sum is σ = 213658472952. Its totient is φ = 210561973072.

The previous prime is 212110222957. The next prime is 212110223023. The reversal of 212110223011 is 110322011212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212110223011 - 2²³ = 212101834403 is a prime.

It is a super-2 number, since 2×212110223011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212110223081) 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, 774124765 + ... + 774125038.

It is an arithmetic number, because the mean of its divisors is an integer number (53414618238).

Almost surely, 2^212110223011 is an apocalyptic number.

212110223011 is a deficient number, since it is larger than the sum of its proper divisors (1548249941).

212110223011 is a wasteful number, since it uses less digits than its factorization.

212110223011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548249940.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212110223011 its reverse (110322011212), we get a palindrome (322432234223).

The spelling of 212110223011 in words is "two hundred twelve billion, one hundred ten million, two hundred twenty-three thousand, eleven".