211213221110 has 8 divisors (see below), whose sum is σ = 380183798016. Its totient is φ = 84485288440.

The previous prime is 211213221097. The next prime is 211213221113. The reversal of 211213221110 is 11122312112.

It is a happy number.

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

It is a super-2 number, since 2×211213221110² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211213221113) 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, 10560661046 + ... + 10560661065.

It is an arithmetic number, because the mean of its divisors is an integer number (47522974752).

Almost surely, 2^211213221110 is an apocalyptic number.

211213221110 is a deficient number, since it is larger than the sum of its proper divisors (168970576906).

211213221110 is a wasteful number, since it uses less digits than its factorization.

211213221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21121322118.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211213221110 its reverse (11122312112), we get a palindrome (222335533222).

The spelling of 211213221110 in words is "two hundred eleven billion, two hundred thirteen million, two hundred twenty-one thousand, one hundred ten".