122221001111 has 8 divisors (see below), whose sum is σ = 140349475200. Its totient is φ = 105262106040.

The previous prime is 122221001099. The next prime is 122221001141. The reversal of 122221001111 is 111100122221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122221001111 is a prime.

It is a super-2 number, since 2×122221001111² (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 (122221001141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292394531 + ... + 292394948.

It is an arithmetic number, because the mean of its divisors is an integer number (17543684400).

Almost surely, 2^122221001111 is an apocalyptic number.

122221001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122221001111 is a deficient number, since it is larger than the sum of its proper divisors (18128474089).

122221001111 is a wasteful number, since it uses less digits than its factorization.

122221001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584789509.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122221001111 its reverse (111100122221), we get a palindrome (233321123332).

The spelling of 122221001111 in words is "one hundred twenty-two billion, two hundred twenty-one million, one thousand, one hundred eleven".