221211011110 has 8 divisors (see below), whose sum is σ = 398179820016. Its totient is φ = 88484404440.

The previous prime is 221211011107. The next prime is 221211011141. The reversal of 221211011110 is 11110112122.

It is a happy number.

221211011110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×221211011110² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11060550546 + ... + 11060550565.

It is an arithmetic number, because the mean of its divisors is an integer number (49772477502).

Almost surely, 2^221211011110 is an apocalyptic number.

221211011110 is a deficient number, since it is larger than the sum of its proper divisors (176968808906).

221211011110 is a wasteful number, since it uses less digits than its factorization.

221211011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22121101118.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 221211011110 its reverse (11110112122), we get a palindrome (232321123232).

The spelling of 221211011110 in words is "two hundred twenty-one billion, two hundred eleven million, eleven thousand, one hundred ten".