111010001222 has 4 divisors (see below), whose sum is σ = 166515001836. Its totient is φ = 55505000610.

The previous prime is 111010001197. The next prime is 111010001227. The reversal of 111010001222 is 222100010111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010001227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752500304 + ... + 27752500307.

It is an arithmetic number, because the mean of its divisors is an integer number (41628750459).

Almost surely, 2^111010001222 is an apocalyptic number.

111010001222 is a deficient number, since it is larger than the sum of its proper divisors (55505000614).

111010001222 is an equidigital number, since it uses as much as digits as its factorization.

111010001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55505000613.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111010001222 its reverse (222100010111), we get a palindrome (333110011333).

The spelling of 111010001222 in words is "one hundred eleven billion, ten million, one thousand, two hundred twenty-two".