1122221164 has 12 divisors (see below), whose sum is σ = 1964505088. Its totient is φ = 560934000.

The previous prime is 1122221159. The next prime is 1122221167. The reversal of 1122221164 is 4611222211.

It is a super-3 number, since 3×1122221164³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1122221167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29292 + ... + 55699.

Almost surely, 2^1122221164 is an apocalyptic number.

It is an amenable number.

1122221164 is a deficient number, since it is larger than the sum of its proper divisors (842283924).

1122221164 is a wasteful number, since it uses less digits than its factorization.

1122221164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88296 (or 88294 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 1122221164 is about 33499.5696091756. The cubic root of 1122221164 is about 1039.1848778162.

Adding to 1122221164 its reverse (4611222211), we get a palindrome (5733443375).

The spelling of 1122221164 in words is "one billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred sixty-four".