1122012221 has 8 divisors (see below), whose sum is σ = 1224794304. Its totient is φ = 1019360320.

The previous prime is 1122012193. The next prime is 1122012239. The reversal of 1122012221 is 1222102211.

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

It is not a de Polignac number, because 1122012221 - 2¹⁴ = 1121995837 is a prime.

It is a super-2 number, since 2×1122012221² = 2517822848146705682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122012196 and 1122012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122012421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14060 + ... + 49413.

It is an arithmetic number, because the mean of its divisors is an integer number (153099288).

Almost surely, 2^1122012221 is an apocalyptic number.

1122012221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122012221 is a deficient number, since it is larger than the sum of its proper divisors (102782083).

1122012221 is a wasteful number, since it uses less digits than its factorization.

1122012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65091.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1122012221 is about 33496.4508716968. The cubic root of 1122012221 is about 1039.1203795724.

Adding to 1122012221 its reverse (1222102211), we get a palindrome (2344114432).

The spelling of 1122012221 in words is "one billion, one hundred twenty-two million, twelve thousand, two hundred twenty-one".