111211000221010 has 8 divisors (see below), whose sum is σ = 200179800397836. Its totient is φ = 44484400088400.

The previous prime is 111211000221001. The next prime is 111211000221067. The reversal of 111211000221010 is 10122000112111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 106307915588329 + 4903084632681 = 10310573^2 + 2214291^2 .

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

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, 5560550011041 + ... + 5560550011060.

Almost surely, 2^{111211000221010} is an apocalyptic number.

111211000221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111211000221010 is a deficient number, since it is larger than the sum of its proper divisors (88968800176826).

111211000221010 is a wasteful number, since it uses less digits than its factorization.

111211000221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11121100022108.

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

Adding to 111211000221010 its reverse (10122000112111), we get a palindrome (121333000333121).

The spelling of 111211000221010 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred twenty-one thousand, ten".